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Takaaki Tomai

Section

Frontier Research Institute for Interdisciplinary Sciences

Job title

Professor

Degree

Ph.D (The University of Tokyo)

researchmap

https://researchmap.jp/tomai

J-GLOBAL ID

201601021032853588

e-Rad No.

80583351

Research History 5

2023/04 - Present

Tohoku University　Frontier Research Institute for Interdisciplinary Sciences Advanced Interdisciplinary Research Division　Professor
2023/03 - Present

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Professor
2017 - 2023/02

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials
2015 - 2017

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials
2011 - 2015

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials

Professional Memberships 4

電気化学会
応用物理学会
日本化学会
化学工学会

Research Interests 18

水熱電解
ナノ粒子
超臨界流体
グラフェン
プラズマ
太陽電池
化合物太陽電池
レーザー加工,超臨界流体
材料合成
プラズマ処理
水素
リサイクル
ナノチューブ
エネルギー効率化
資源開発工学
天然ガス
レアメタル
ナノグラフェン

Research Areas 6

Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Transfer phenomena and unit operations /
Nanotechnology/Materials / Green/sustainable/environmental chemistry /
Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Chemical reaction and process system engineering /
Nanotechnology/Materials / Material fabrication and microstructure control /
Environmental science/Agricultural science / Environmental materials/recycling technology /
Nanotechnology/Materials / Energy chemistry /

Awards 11

研究奨励賞

2022/06　日本学術振興会先進セラミックス第124委員会　超臨界水熱法による有機・無機ハイブリッドナノ粒子の合成
トーキン財団特別賞

2016/03　トーキン科学技術振興財団　有機系電極活物質を利用したプロトン型大容量キャパシタの開発
トーキン科学技術賞最優秀賞

2016/03　トーキン科学技術振興財団　有機系電極活物質を利用したプロトン型大容量キャパシタの開発
Poster Award

2015/10　応用物理学会　Bottom-up synthesis of mono-layer graphene under hydrothermal electrochemical conditions
Poster Award

2013/04　応用物理学会　Selenization using SeO2 for CIS/CZTS compound semiconductor films fabrication
多元物質科学研究奨励賞

2012/12　籏野奨学基金　超臨界流体剥離法によるグラフェン量産化に関する研究
プラズマエレクトロニクス賞

2008/03　応用物理学会プラズマエレクトロニクス分科会　Carbon materials syntheses using dielectric barrier discharge microplasma in supercritical carbon dioxide environments
Doyama Award

2007/09　17th Iketani Conference　Development and diagnostics of novel materials processing using supercritical fluid plasma generated by spatial- and temporal- restricted discharge
第20回応用物理学会講演奨励賞

2006/08　応用物理学会　超臨界流体プラズマを用いたカーボンナノ構造物質の合成
Paper Award for Young Scientist

2004/07　7th Asia-pacific conference on plasma science & technology, 日本学術振興会プラズマ材料科学第153委員会　Generating of Dielectric Barrier Discharge under a Supercritical CO2 Environment
第11回奨学賞

2003/03　日本金属学会・日本鉄鋼協会

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Papers 124

Incorporation of organically modified inorganic nanoparticles into polypropylene films using supercritical CO2 International-journal Peer-reviewed

Zhi Guo, Isao Tabata, Teruo Hori, Kazumasa Hirogaki, Takaaki Tomai

The Journal of Supercritical Fluids　238　107103-107103　2026/12
Publisher: Elsevier BV
DOI： 10.1016/j.supflu.2026.107103 　

ISSN： 0896-8446
Evaluation of dispersibility and aggregation for decanoic acid-modified ceria nanoparticle + organic solvent systems: Measurement and modeling with activity coefficient models International-journal Peer-reviewed

Hiroyuki Matsuda, Naishu Yang, Miki Matsuda, Rikuto Yamazaki, Masaki Ota, Takaaki Tomai, Hiroshi Inomata

Fluid Phase Equilibria　610　114769-114769　2026/11
Publisher: Elsevier BV
DOI： 10.1016/j.fluid.2026.114769 　

ISSN： 0378-3812
Molecular-solute-like nanoparticle dispersion in crowded colloidal systems revealed by interfacial and interparticle solvent dynamics International-journal Peer-reviewed

Takaaki Tomai, Yuko Arai, Yuta Ishikawa, Yong Qian, Kenji Kikuchi, Chika Takai-Yamashita, Junko Ikeda

Journal of Molecular Liquids　457　129736-129736　2026/09
Publisher: Elsevier BV
DOI： 10.1016/j.molliq.2026.129736 　

ISSN： 0167-7322
Photoelectrochemically Homogeneous Nickel Oxide Photocathode Composed of Nanocrystals Prepared by Supercritical Hydrothermal Synthesis International-journal Peer-reviewed

Tomoya Oshikiri, Tomoki Kawase, Kaori Sato, Hazuki Ito, Takaaki Tomai, Keisuke Nakamura, Xu Shi, Yasutaka Matsuo, Hiromasa Niinomi, Masaru Nakagawa

Nanoscale Advances　2026/06
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d6na00165c 　

eISSN： 2516-0230

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This study presents a novel approach for fabricating photoelectrochemically homogeneous photocathodes composed of nickel oxide nanocrystals (NiO NCs) using supercritical hydrothermal synthesis and push coating (PC) methods. NiO NCs were...
Materials Process Informatics-Assisted Precise Particle Size Control of Metal-Organic Framework International-journal Peer-reviewed

YUAN WANG, Heng Liu, Yusuke Hashimoto, Kazuyuki Iwase, Hao Li, Takaaki Tomai

Chemical Science　2026/06
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d6sc03212e 　

ISSN： 2041-6520

eISSN： 2041-6539

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Precise control over the particle size of metal–organic frameworks (MOFs) is pivotal for optimizing their performance in catalysis, separation, and drug delivery. However, conventional synthetic strategies largely depend on empirical...
Development of a Model for Calculating the Solubility of Organically Modified Nanoparticles in Organic Solvents Peer-reviewed

Masaki Ota, Naishu Yang, Takaaki Tomai, Hiroshi Inomata

KAGAKU KOGAKU RONBUNSHU　52　(3)　39-42　2026/05/20
Publisher: Society of Chemical Engineers, Japan
DOI： 10.1252/kakoronbunshu.52.39 　

ISSN： 0386-216X

eISSN： 1349-9203
Non-Monotonic CO ₂ Reduction Selectivity under High Pressure: From Concentration-Driven Regime to Charge-Transfer Regulation International-journal Peer-reviewed

Xishuo Zhang, Kazuyuki Iwase, Ryusei Takayanagi, Yusuke Hashimoto, Takaaki Tomai

ACS Catalysis　2026/05/15
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acscatal.6c00443 　

ISSN： 2155-5435

eISSN： 2155-5435
Subcritical Hydrothermal Synthesis in a Water-Alcohol Co-solvent of Size-Controlled High-Entropy Spinel Oxide Nanoparticles as Oxygen Evolution Electrocatalysts

Ryoga Kato, Takaaki Tomai, Kazuyuki Iwase

2026/04/28

DOI： 10.26434/chemrxiv.15002476/v1 　
Unveiling Synergistic Elemental Roles in High-Entropy Spinel Oxides for Oxygen Evolution Electrocatalysis

Kazuyuki Iwase, Itaru Honma, Takaaki Tomai

ACS Catalysis　2026/04/17

DOI： 10.1021/acscatal.5c08824 　
Insight into high-entropy oxides as anodes, cathodes, and solid-state electrolytes for advancing Li-ion batteries: A comprehensive review International-journal International-coauthorship Peer-reviewed

Shrikanth G.K., Takaaki Tomai, Guddappa Halligudra, Sudhakar Y.N., Chandrakantha Bekal, Padmaraj N.H., Saraswati Kulkarni, Raghavendra K.G., Chetana S., Manjunath Shetty

Journal of Energy Storage　153　120888-120888　2026/04
Publisher: Elsevier BV
DOI： 10.1016/j.est.2026.120888 　

ISSN： 2352-152X
Apparent molar mass of decanoic acid surface modified ceria nanoparticles measured by analytical centrifugation Peer-reviewed

Naishu Yang, Masaki Ota, Richard Lee Smith, Takaaki Tomai, Hiroshi Inomata, Masaru Watanabe

Fluid Phase Equilibria　114707-114707　2026/03
Publisher: Elsevier BV
DOI： 10.1016/j.fluid.2026.114707 　

ISSN： 0378-3812
Facet-engineered Pt/CeO2 oxygen carriers for efficient low-temperature chemical looping steam methane reforming Peer-reviewed

Gimyeong Seong, Akira Yoko, Takaaki Tomai, Tadafumi Adschiri

Fuel　407　137406-137406　2026/03
Publisher: Elsevier BV
DOI： 10.1016/j.fuel.2025.137406 　

ISSN： 0016-2361
Size-controlled hydrothermal synthesis of crystalline high-entropy spinel oxide nanoparticles for oxygen evolution electrocatalysts International-journal Peer-reviewed

Ryoga Kato, Kazuyuki Iwase, Hiroto Okuyama, Akiko Tsurumaki, Hitoshi Kasai, Kouki Oka, Takeo Yamaguchi, Takaaki Tomai

Journal of Materials Chemistry A　2026

DOI： 10.1039/D6TA00970K 　
Transitions in intra-droplet flow and wetting governing nanoparticle deposition patterns in inkjet-printed nanofluids Peer-reviewed

Eita Shoji, Taiga Saito, Tetsushi Biwa, Masaki Kubo, Takao Tsukada, Takaaki Tomai, Tadafumi Adschiri

Journal of Colloid and Interface Science　699　138246-138246　2025/12
Publisher: Elsevier BV
DOI： 10.1016/j.jcis.2025.138246 　

ISSN： 0021-9797
Low-temperature chemical looping steam methane reforming process using facet-controlled nano CeO2 carbon carrier Peer-reviewed

Gimyeong Seong, Akira Yoko, Takaaki Tomai, Tadafumi Adschiri

Chemical Engineering Journal Advances　24　100944-100944　2025/11
Publisher: Elsevier BV
DOI： 10.1016/j.ceja.2025.100944 　

ISSN： 2666-8211
Enhancing the Electrochemical Oxygen Evolution Activity of Co–Fe Spinel Oxides via Low‐Temperature Fluorine Doping Peer-reviewed

Kazuyuki Iwase, Masaki Ohtaka, Ryoga Kato, Yoshiyuki Gambe, Takaaki Tomai, Itaru Honma

ChemCatChem　17　(23)　2025/10/16
Publisher: Wiley
DOI： 10.1002/cctc.202501456 　

ISSN： 1867-3880

eISSN： 1867-3899

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Abstract The electrochemical oxygen evolution reaction (OER) is an important anodic reaction of the water electrolysis to generate green hydrogen. In this regard, spinel oxides have attracted significant attention due to their higher OER activity in alkaline electrolytes and the range of metals that can be used in such oxides. This study attempted to enhance the OER activities of Co–Fe spinel oxides through low‐temperature fluorine doping approach. F‐doping was found not to significantly affect the morphology of the catalysts but did slightly reduce the valence state of Co without affecting that of Fe. OER activity measurements demonstrated that F‐doping improved OER activity, particularly in catalysts containing both Fe and Co, by reducing the overpotential and enhancing kinetics. These results suggest that modifications of the electronic structures of spinel oxides through F‐doping are a promising approach to developing highly active OER catalysts composed of spinel oxides.
Cloud synthesis: a global closed-loop feedback powered by autonomous AI-driven catalyst design agent Peer-reviewed

Di Zhang, Xue Jia, Heng Liu, Yuhang Wang, Songbo Ye, Qiuling Jiang, Yuan Wang, Zhongyuan Guo, Linda Zhang, Li Wei, Weijie Yang, Hui Liu, Shun Zhao, Haoxiang Xu, Daojian Cheng, Yusuke Hashimoto, Takaaki Tomai, Hao Li

AI Agent　1　(2)　2025/09/30
Publisher: OAE Publishing Inc.
DOI： 10.20517/aiagent.2025.02 　

eISSN： 3070-3719

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The Digital Catalysis Platform (DigCat) pioneers a revolutionary framework for cloud-based synthesis and global closed-loop feedback, redefining catalyst research through advanced automation and collaboration. By integrating > 400,000 experimental and > 400,000 structural data points with cutting-edge AI tools, DigCat streamlines catalyst discovery and optimization into a seamless, automated, and data-driven workflow. Through its five-step process - ranging from material design to pH-dependent microkinetic modeling - the platform delivers unparalleled accuracy and efficiency. Accessible globally via the cloud, DigCat enables researchers worldwide to leverage its robust computational capabilities, driving the development of next-generation catalysts with enhanced stability and performance.
Evaluation of interfacial affinity between surface-modified metal oxide and solvent mixture using molecular dynamics simulations Peer-reviewed

Yuto Sato, Yoichiro Kurosawa, Takamasa Saito, Eita Shoji, Gota Kikugawa, Donatas Surblys, Atsuki Komiya, Takaaki Tomai, Masaki Kubo

The Journal of Chemical Physics　163　(7)　2025/08/15
Publisher: AIP Publishing
DOI： 10.1063/5.0288662 　

ISSN： 0021-9606

eISSN： 1089-7690

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The industrial application of surface-modified nanoparticles requires controlling their colloidal stability by selecting suitable surface modifiers and solvents. Solvent mixtures can control the interaction between the nanoparticles and solvents, but the detailed mechanism is still unclear. In this study, molecular dynamics simulations were performed for an interface between a decanoic acid-modified Al2O3 and a binary mixture of organic solvents. Cyclohexane and ethanol were selected as a good solvent and a poor solvent for the modifier, respectively, and their volume fraction for preparation was varied. For any volume fraction of ethanol, ethanol was adsorbed onto the Al2O3 surface patches without modifiers. Cyclohexane was preferentially distributed around the modifier. The work of adhesion was calculated as a measure of interfacial affinity using thermodynamic integration. For systems with ethanol, the work of adhesion was significantly larger than for those with cyclohexane, owing to the strong interaction of the Al2O3 surface with the adsorbed ethanol; however, this result, that is, the obtained affinity, is not consistent with the experimental dispersion results of surface-modified nanoparticles. To focus on the interaction between modifiers and surrounding solvents, the work required to strip solvents from the modifier was calculated, excluding the contribution of adsorbed ethanol. The required work decreased after the ethanol fraction surpassed a specific threshold, indicating that the affinity can be related to the distribution of solvent species near the modifier layer. This work provides an evaluation method and insights into the effect of a solvent mixture on the interfacial affinity at the molecular level.
A materials map integrating experimental and computational data via graph-based machine learning for enhanced materials discovery Peer-reviewed

Y. Hashimoto, X. Jia, H. Li, T. Tomai

APL Machine Learning　3　(3)　2025/07/28
Publisher: AIP Publishing
DOI： 10.1063/5.0274812 　

eISSN： 2770-9019

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Materials informatics (MI), emerging from the fusion of materials science and data science, has the potential to greatly accelerate material development and discovery. Although MI relies on data from both computational and experimental studies, their integration remains challenging. In our previous study, we addressed this challenge by training a machine learning model on experimental data and applying it to compositional entries in a computational database, thereby creating a unified dataset. In this study, we use these integrated datasets to construct material maps that visualize the relationships between material properties and structural features. The goal is to provide experimental researchers with a practical tool for exploring structurally similar compounds and thus their associated routes. We generate the materials map using the MatDeepLearn (MDL) framework, which represents crystal structures as graphs and employs deep learning for property prediction. Statistical analyses reveal that the MDL equipped with a message passing neural network (MPNN) architecture efficiently captures features related to the structural complexity of materials. Interestingly, this representational advantage does not always lead to higher accuracy in property prediction. We attribute this finding to the strong learning capacity of MPNN, which contributes primarily to the organization of data points within the materials map rather than to incremental gains in predictive precision.
Phonon Mean Free Path of Silicate Glasses: A Useful Parameter to Distinguish between Framework and Nonframework Cations

Sohei Sukenaga, Bunta Ozato, Yohei Onodera, Shinji Kohara, Masahiro Shimizu, Tsuyoshi Nishi, Rie Endo, Takaaki Tomai, Akira Yoko, Sakiko Kawanishi, Hiroshi Fukaya, Hiromichi Ohta, Hiroyuki Shibata

Tetsu-to-Hagane　111　(10)　551-560　2025/07/01
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/tetsutohagane.tetsu-2025-008 　

ISSN： 0021-1575

eISSN： 1883-2954
Nonequilibrium Process for Doping Under Continuous-Flow Hydrothermal Synthesis of Cerium Oxide-Based Nanoparticles Peer-reviewed

Akira Yoko, Chunli Han, Ayame Sakonaka, Gimyeong Seong, Takaaki Tomai, Satoshi Ohara, Tadafumi Adschiri

Precision Chemistry　3　(7)　372-379　2025/04/17
Publisher: American Chemical Society (ACS)
DOI： 10.1021/prechem.5c00004 　

ISSN： 2771-9316

eISSN： 2771-9316
Creating multidirectional fractures through particle jamming Peer-reviewed

Yusuke Mukuhira, Ryota Goto, Noriaki Watanabe, Kazumasa Sueyoshi, Kohei Takuma, Rongchang Zhang, Tongfei Tian, Vladimir Sokolovski, Makoto Naoi, Yuko Arai, Takaaki Tomai, Masaoki Uno, Takatoshi Ito

International Journal of Rock Mechanics and Mining Sciences　188　106051-106051　2025/04
Publisher: Elsevier BV
DOI： 10.1016/j.ijrmms.2025.106051 　

ISSN： 1365-1609
Measurement the Solubility of Decanoic Acid-Modified Ceria Nanoparticle+Organic Solvent Systems and Correlate with Activity Coefficient Equations Peer-reviewed

Naishu Yang, Hiroyuki Matsuda, Masaki Ota, Takaaki Tomai

KAGAKU KOGAKU RONBUNSHU　51　(2)　25-31　2025/03/20
Publisher: Society of Chemical Engineers, Japan
DOI： 10.1252/kakoronbunshu.51.25 　

ISSN： 0386-216X

eISSN： 1349-9203
Degradation Behavior of CeO₂-Based Nanoparticles as Oxygen Carriers for the Chemical Looping Process Peer-reviewed

Daiki Takahashi, Akira Yoko, Gimyeong Seong, Kazuyuki Iwase, Tadafumi Adschiri, Takaaki Tomai

ACS Applied Nano Materials　2025/02/17
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsanm.4c06966 　

ISSN： 2574-0970

eISSN： 2574-0970
Hydrothermal Conditions Enhance Electrochemical CO2 Reduction Reaction: A Sustainable Path to Efficient Carbon Recycling Peer-reviewed

Takaaki Tomai, Alexander Guzman‐Urbina, Takafumi Sato, Kazuyuki Iwase

Advanced Sustainable Systems　2400489　2025/01

DOI： 10.1002/adsu.202400489 　
Superspreading Wetting of Nanofluid Droplet Laden with Highly Dispersed Nanoparticles Peer-reviewed

Eita Shoji, Akira Hoshino, Tetsushi Biwa, Masaki Kubo, Takao Tsukada, Takaaki Tomai, Tadafumi Adschiri

Langmuir　2024/12/02
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.langmuir.4c03347 　

ISSN： 0743-7463

eISSN： 1520-5827
Fabrication of a Two-Dimensional Heterostructured MoS₂-RGO Nanocomposite for Enhanced Photocatalytic Hydrogen Evolution Peer-reviewed

Murthy Muniyappa, Navya Rani Marilingaiah, Manjunath Shetty, Mahesh Shastri, Manikanta Palya Narayanaswamy, Takaaki Tomai, Akira Yoko, Karunakar Rai, H. J. Yashwanth, Dinesh Rangappa

ACS Applied Energy Materials　2024/11/25
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsaem.4c02228 　

ISSN： 2574-0962

eISSN： 2574-0962
Unified formulation of particle-size-dependent viscosity for Newtonian dispersions of micro- and nanoparticles Peer-reviewed

Yuko Arai, Takaaki Tomai, Gimyeong Seong, Ryoma Ito, Akira Yoko, Tadafumi Adschiri

Journal of Molecular Liquids　125659-125659　2024/07
Publisher: Elsevier BV
DOI： 10.1016/j.molliq.2024.125659 　

ISSN： 0167-7322
Fusion Growth and Extraordinary Distortion of Ultrasmall Metal Oxide Nanoparticles Peer-reviewed

Akira Yoko, Yuki Omura, Kakeru Ninomiya, Maiko Nishibori, Tomoki Fujita, Hidetaka Kasai, Eiji Nishibori, Nobutaka Chiba, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

Journal of the American Chemical Society　2024/05/29
Publisher: American Chemical Society (ACS)
DOI： 10.1021/jacs.4c05106 　

ISSN： 0002-7863

eISSN： 1520-5126
Reduction of (100)-Faceted CeO₂ for Effective Pt Loading Peer-reviewed

Akira Yoko, Haodong Wang, Ko Furuya, Daiki Takahashi, Gimyeong Seong, Takaaki Tomai, Anatoly I. Frenkel, Mitsuhiro Saito, Kazutoshi Inoue, Yuichi Ikuhara, Tadafumi Adschiri

Chemistry of Materials　2024/05/21
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.chemmater.4c00627 　

ISSN： 0897-4756

eISSN： 1520-5002
Effect of Exposed Facets and Oxidation State of CeO₂ Nanoparticles on CO₂ Adsorption and Desorption Peer-reviewed

Gimyeong Seong, Akira Yoko, Takaaki Tomai, Takashi Naka, Haodong Wang, Anatoly I. Frenkel, Tadafumi Adschiri

ACS Sustainable Chemistry & Engineering　2024/05/02
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acssuschemeng.4c01322 　

ISSN： 2168-0485

eISSN： 2168-0485
Phonon mean free path of silicate glasses: a useful parameter to distinguish between framework and nonframework cations Peer-reviewed

Sohei Sukenaga, Bunta Ozato, Yohei Onodera, Shinji Kohara, Masahiro Shimizu, Tsuyoshi Nishi, Rie Endo, Takaaki Tomai, Akira Yoko, Sakiko Kawanishi, Hiroshi Fukaya, Hiromichi Ohta, Hiroyuki Shibata

ISIJ International　2024
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2024-141 　

ISSN： 0915-1559

eISSN： 1347-5460
Development of PVK-Based Plastic Scintillators Loaded with Bi₂O₃ Nanoparticles Peer-reviewed

M. Koshimizu, S. Komatsuzaki, A. Watanabe, A. Sato, A. Yoko, G. Seong, T. Tomai, T. Adschiri, S. Kishimoto, Y. Fujimoto, K. Asai

2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)　2023/11/04
Publisher: IEEE
DOI： 10.1109/nssmicrtsd49126.2023.10337813 　
Supercritical fluids technologies for sustainable development goals Peer-reviewed

Takaaki Tomai, Elsa Weiss-Hortala, Lin Chen

The Journal of Supercritical Fluids　200　105993-105993　2023/09
Publisher: Elsevier BV
DOI： 10.1016/j.supflu.2023.105993 　

ISSN： 0896-8446
Supercritical Hydrothermal Reactions for Material Synthesis Peer-reviewed

Tadafumi Adschiri, Seiichi Takami, Mitsuo Umetsu, Satoshi Ohara, Takashi Naka, Kimitaka Minami, Daisuke Hojo, Takanari Togashi, Toshihiko Arita, Minori Taguchi, Masahiro Itoh, Nobuaki Aoki, Gimyeong Seong, Takaaki Tomai, Akira Yoko

Bulletin of the Chemical Society of Japan　96　(2)　133-147　2023/01

DOI： 10.1246/bcsj.20220295 　

ISSN： 0009-2673

eISSN： 1348-0634
Process intensification for fast SrFe12O19 nanoparticle production from celestite under supercritical hydrothermal conditions Peer-reviewed

J.C. Rendón-Angeles, A. Yoko, G. Seong, T. Tomai, T. Adschiri

The Journal of Supercritical Fluids　192　105810-105810　2023/01
Publisher: Elsevier BV
DOI： 10.1016/j.supflu.2022.105810 　

ISSN： 0896-8446
Structure and properties of silicon nano- and microparticles obtained by electric-spark dispersion method Peer-reviewed

Ruslan A. Sergiienko, Bogdan I. Ilkiv, Svitlana S. Petrovska, Kostiantyn G. Lopatko, Serafym K. Lopatko, Kateryna V. Vinarchuk, Yuichiro Hayasaka, Takaaki Tomai, Anatolii M. Verkhovliuk, Yaroslav V. Zaulychnyy

Molecular Crystals and Liquid Crystals　752　(1)　112-127　2022/06/25
Publisher: Informa UK Limited
DOI： 10.1080/15421406.2022.2091278 　

ISSN： 1542-1406

eISSN： 1563-5287
Graphene and Polyethyleneimine Bilayer Wrapping onto Quinone Molecular Crystal Cathode Materials for Aqueous Zinc-Ion Batteries Peer-reviewed

Hiroaki Kobayashi, Kotaro Oizumi, Takaaki Tomai, Itaru Honma

ACS Applied Energy Materials　5　(4)　4707-4711　2022/04/25
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsaem.2c00134 　

ISSN： 2574-0962

eISSN： 2574-0962
One-Pot Solvothermal Synthesis of Spinel MgFe2O4 Nanoparticles as a Promising Cathode Material for Rechargeable Mg-ion Battery

Vinay Gangaraju, Kunal Roy, Mahesh Shastri, Navya Rani Marilingaiah, Manjunath Shetty, Hiroaki Kobayashi, Takaaki Tomai, Prasanna D. Shivaramu, Dinesh Rangappa

Springer Proceedings in Materials　99-112　2022/04/03
Publisher: Springer Singapore
DOI： 10.1007/978-981-16-7554-6_8 　

ISSN： 2662-3161

eISSN： 2662-317X
Supercritical Hydrothermal Synthesis of Organic-Modified Ce1-xZrxO2-delta (0 <= x <= 1) Nanoparticles as a Low-Temperature Oxygen Carrier

Akira Yoko, Thunyapong Kamonvarapitak, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

CHEMNANOMAT　8　(4)　2022/04

DOI： 10.1002/cnma.202100495 　

ISSN： 2199-692X
Uniform Organically Modified CeO₂ Nanoparticles Synthesized from a Carboxylate Complex under Supercritical Hydrothermal Conditions: Impact of Ce Valence Peer-reviewed

Yuki Omura, Akira Yoko, Gimyeong Seong, Maiko Nishibori, Kakeru Ninomiya, Takaaki Tomai, Tadafumi Adschiri

The Journal of Physical Chemistry C　2022/03/24
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.jpcc.2c00088 　

ISSN： 1932-7447

eISSN： 1932-7455
One-Pot Super Critical Fluid Synthesis of Spinel MnFe2O4 Nanoparticles and its Application as Anode Material for Mg-ion Battery

Vinay Gangaraju, Tathagata Sardar, Kunal Roy, Mahesh Shastri, Manjunath Shetty, Murthy Muniyappa, Hiroaki Kobayashi, Takaaki Tomai, Ananda Kumar C S, Prasanna D. Shivaramu, Dinesh Rangappa

Asian Journal of Chemistry　34　(4)　989-994　2022
Publisher: Asian Journal of Chemistry
DOI： 10.14233/ajchem.2022.23642 　

ISSN： 0970-7077

eISSN： 0975-427X

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In present study, the synthesis of spinel MnFe2O4 nanoparticles using a facile one-pot super criticalfluid method and their application for Mg-ion battery application as anode materials is reported. Thesynthesized MnFe2O4 nanoparticles were well characterized for their structure and morphology usingXRD, SEM, TEM and EDS analysis. The average particle size of materials was less than 50 nm withspinel structure. The main feature of magnesium ion battery is its high specific capacity and largevolumetric energy density, which makes it a promising alternative to Li-ion batteries. The spinelMnFe2O4 material has been used as an anode material for Mg-ion batteries. At different C-rates (0.05Cto 2C), electrochemical charge-discharge behaviour has been observed. In first cycle of the phase-purespinel structured anode, an initial specific capacity of 195.82 mAh/g, 139.70 mAh/g, 25.04 mAh/gand 14.16 mAh/g were obtained at C rate of 0.05C, 0.1C, 1C and 2C, respectively. A possible phaseconversion reaction of the anode resulted in a decrease in specific capacity with increasing C-rate.
Rapid, one-step fabrication of MoS2 electrocatalysts by hydrothermal electrodeposition Peer-reviewed

Yuta Nakayasu, Hiroaki Kobayashi, Shusuke Katahira, Takaaki Tomai, Itaru Honma

Electrochemistry Communications　134　107180-107180　2022/01
Publisher: Elsevier BV
DOI： 10.1016/j.elecom.2021.107180 　

ISSN： 1388-2481
Direct evidence for highly developed graphene in PAN-based carbon fibers Peer-reviewed

Kiminori Ono, Takaaki Tomai, Takafumi Ishii, Kosuke Kurushima, Shin Inamoto, Benjamin H. Rutz, Fumihiko Tanaka

Carbon Trends　5　100136-100136　2021/10
Publisher: Elsevier BV
DOI： 10.1016/j.cartre.2021.100136 　

ISSN： 2667-0569
Facile Regeneration Strategy for Facet-Controlled Nanocatalysts via the Dissolution–Reprecipitation Process Promoted by an Organic Modifier

Takaaki Tomai, Liangyu Tang, Akira Yoko, Yuki Omura, Gimyeong Seong, Tadafumi Adschiri

Chemistry of Materials　33　(19)　7780-7784　2021/09/13
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.chemmater.1c02145 　

ISSN： 0897-4756

eISSN： 1520-5002
Nucleation and Coalescence of BaTiO3 Using a Continuous Flow Reactor with Water–Ethanol Mixed Solvents

Akira Yoko, Hiroki Naito, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

The Journal of Physical Chemistry C　125　(35)　19489-19496　2021/08/27
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.jpcc.1c04914 　

ISSN： 1932-7447

eISSN： 1932-7455
Utilization of Sub- and Supercritical Water for Nano-Catalyst Synthesis and Waste and Biomass Processing

Akira Yoko, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

Waste and Biomass Valorization　13　(1)　51-66　2021/06/18
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s12649-021-01483-1 　

ISSN： 1877-2641

eISSN： 1877-265X
Silk cocoon derived carbon and sulfur nanosheets as cathode material for Li-S battery application

Mahesh Shastri, Jagadeesh Babu Sriramoju, Murthy Muniyappa, Manjunath Shetty, Vinay Gangaraju, Muralidhar Sindhu Sree, Navyarani Marlingaiah, Hiroaki Kobayashi, Takaaki Tomai, Itaru Honma, Prasanna D. Shivaramu, S. V. Lokesh, Dinesh Rangappa

EMERGENT MATERIALS　4　(5)　1329-1337　2021/05

DOI： 10.1007/s42247-021-00218-1 　

ISSN： 2522-5731

eISSN： 2522-574X
Fabrication of Liquid Scintillators Loaded with 6-PhenylhexaNoic Acid-Modified ZrO2 Nanoparticles for Observation of Neutrinoless Double Beta Decay Peer-reviewed

Akito Watanabe, Arisa Magi, Akira Yoko, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri, Yamato Hayashi, Masanori Koshimizu, Yutaka Fujimoto, Keisuke Asai

Nanomaterials　11　(5)　1124-1124　2021/04/27
Publisher: MDPI AG
DOI： 10.3390/nano11051124 　

eISSN： 2079-4991

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The observation of neutrinoless double beta decay is an important issue in nuclear and particle physics. The development of organic liquid scintillators with high transparency and a high concentration of the target isotope would be very useful for neutrinoless double beta decay experiments. Therefore, we propose a liquid scintillator loaded with metal oxide nanoparticles containing the target isotope. In this work, 6-phenylhexanoic acid-modified ZrO2 nanoparticles, which contain 96Zr as the target isotope, were synthesized under sub/supercritical hydrothermal conditions. The effects of the synthesis temperature on the formation and surface modification of the nanoparticles were investigated. Performing the synthesis at 250 and 300 °C resulted in the formation of nanoparticles with smaller particle sizes and higher surface modification densities than those prepared at 350 and 400 °C. The highest modification density (3.1 ± 0.2 molecules/nm2) and Zr concentration of (0.33 ± 0.04 wt.%) were obtained at 300 °C. The surface-modified ZrO2 nanoparticles were dispersed in a toluene-based liquid scintillator. The liquid scintillator was transparent to the scintillation wavelength, and a clear scintillation peak was confirmed by X-ray-induced radioluminescence spectroscopy. In conclusion, 6-phenylhexanoic acid-modified ZrO2 nanoparticles synthesized at 300 °C are suitable for loading in liquid scintillators.
One-pot supercritical water synthesis of Bi2MoO6-RGO 2D heterostructure as anodes for Li-ion batteries International-journal International-coauthorship Peer-reviewed

Manjunath Shetty, Christian Schüßler, Mahesh Shastri, Chethan Sabbanahalli, C.P. Chitrabhanu, M. Murthy, S. Jagadeesh Babu, Takaaki Tomai, K.S. Anantharaju, Prasanna D. Shivaramu, Dinesh Rangappa

Ceramics International　47　(7)　10274-10283　2021/04
Publisher: Elsevier BV
DOI： 10.1016/j.ceramint.2020.12.061 　

ISSN： 0272-8842
Optimization of phosphor concentration of surface‐modified Bi2O3 nanoparticle‐loaded plastic scintillators for high‐energy photon detection Peer-reviewed

Arisa Magi, Masanori Koshimizu, Akito Watanabe, Akira Yoko, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri, Rie Haruki, Fumihiko Nishikido, Shunji Kishiomto, Yutaka Fujimoto, Keisuke Asai

Journal of Materials Science: Materials in Electronics　32　(6)　7987-7999　2021/03
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s10854-021-05522-4 　

ISSN： 0957-4522

eISSN： 1573-482X
Optimization of phosphor concentration in 3-PPA-modified Bi₂O₃ nanoparticle-loaded PVK-based plastic scintillators for high count rate X-ray measurements

Magi Arisa, Koshimizu Masanori, Watanabe Akito, Sato Atsushi, Yoko Akira, Seong Gimyeong, Tomai Takaaki, Adschiri Tadafumi, Kishimoto Shunji, Nishikido Fumihiko, Fujimoto Yutaka, Asai Keisuke

JSAP Annual Meetings Extended Abstracts　2021.1　519-519　2021/02/26
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2021.1.0_519 　

eISSN： 2436-7613
Development of 6-phenylhexanoic acid-modified ZrO₂ nanoparticles loaded liquid scintillator for double beta-decay experiments

Watanabe Akito, Magi Arisa, Yoko Akira, Seong Gimyeong, Tomai Takaaki, Adschiri Tadafumi, Hayashi Yamato, Koshimizu Masanori, Fujimoto Yutaka, Asai Keisuke

JSAP Annual Meetings Extended Abstracts　2021.1　522-522　2021/02/26
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2021.1.0_522 　

eISSN： 2436-7613
Mechanisms of the surface reaction and crystal growth of cerium oxide by supercritical hydrothermal treatment with carboxylic acids

Yuki Omura, Akira Yoko, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

CrystEngComm　23　(31)　5353-5361　2021
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d1ce00720c 　

eISSN： 1466-8033

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<p>The surface reaction and particle growth mechanisms of cerium oxide and decanoic acid revealed in this study.</p>
Atomistic origin of high-concentration Ce3+ in {100}-faceted Cr-substituted CeO2 nanocrystals Peer-reviewed

Xiaodong Hao, Akira Yoko, Kazutoshi Inoue, Yang Xu, Mitsuhiro Saito, Chunlin Chen, Gimyeong Seong, Takaaki Tomai, Seiichi Takami, Alexander L. Shluger, Bingshe Xu, Tadafumi Adschiri, Yuichi Ikuhara

Acta Materialia　203　116473-116473　2021/01
Publisher: Elsevier BV
DOI： 10.1016/j.actamat.2020.11.015 　

ISSN： 1359-6454
Solvent accommodation effect on dispersibility of metal oxide nanoparticle with chemisorbed organic shell Peer-reviewed

Takaaki Tomai, Naoya Tajima, Motoyuki Kimura, Akira Yoko, Gimyeong Seong, Tadafumi Adschiri

Journal of Colloid and Interface Science　587　574-580　2020/11
Publisher: Elsevier BV
DOI： 10.1016/j.jcis.2020.11.014 　

ISSN： 0021-9797

eISSN： 1095-7103
Electrical Conductivity-Relay between Organic Charge-Transfer and Radical Salts toward Conductive Additive-Free Rechargeable Battery Peer-reviewed

Yui Fujihara, Hiroaki Kobayashi, Shinya Takaishi, Takaaki Tomai, Masahiro Yamashita, Itaru Honma

ACS Applied Materials & Interfaces　12　(23)　25748-25755　2020/05

DOI： 10.1021/acsami.0c03642 　

ISSN： 1944-8244

eISSN： 1944-8252
Core–shell structure formation strategy with hydrothermal synthesis: Importance of seeds, precursor concentration, and heterogeneous reaction Peer-reviewed

Akira Yoko, Sho Okabe, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

Journal of Supercritical Fluids　159　2020/05/01

DOI： 10.1016/j.supflu.2019.104749 　

ISSN： 0896-8446
Defect-rich exfoliated MoSe<inf>2</inf> nanosheets by supercritical fluid process as an attractive catalyst for hydrogen evolution in water Peer-reviewed

Quang Duc Truong, Yuta Nakayasu, Quyen T. Nguyen, Duc N. Nguyen, Chuc T. Nguyen, Murukanahally Kempaiah Devaraju, Dinesh Rangappa, Keiichiro Nayuki, Yoshikazu Sasaki, Phong D. Tran, Takaaki Tomai, Itaru Honma

Applied Surface Science　505　2020/03/01

DOI： 10.1016/j.apsusc.2019.144537 　

ISSN： 0169-4332
Bottom-up synthesis of graphene via hydrothermal cathodic reduction Peer-reviewed

Takaaki Tomai, Yuta Nakayasu, Yusuke Okamura, Shunichi Ishiguro, Naoki Tamura, Shusuke Katahira, Itaru Honma

Carbon　158　131-136　2020/03

DOI： 10.1016/j.carbon.2019.11.052 　

ISSN： 0008-6223
Mixing and Solvent Effects on Kinetics of Supercritical Hydrothermal Synthesis: Reaction of Nickel Nitrate to Nickel Oxide Peer-reviewed

Akira Yoko, Yutaro Tanaka, Gimyeong Seong, Daisuke Hojo, Takaaki Tomai, Tadafumi Adschiri

The Journal of Physical Chemistry C　124　(8)　4772-4780　2020/02/27
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.jpcc.9b09138 　

ISSN： 1932-7447

eISSN： 1932-7455
Interconnected 3D Framework of CeO2 with High Oxygen Storage Capacity: High-Resolution Scanning Electron Microscopic Observation International-journal Peer-reviewed

Jinfeng Lu, Shunsuke Asahina, Seiichi Takami, Akira Yoko, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

ACS Applied Nano Materials　3　(3)　2346-2353　2020/02/05

DOI： 10.1021/acsanm.9b02446 　

eISSN： 2574-0970
Highly Cr-Substituted CeO2 Nanoparticles Synthesized Using a Non-equilibrium Supercritical Hydrothermal Process: High Oxygen Storage Capacity Materials Designed for a Low-Temperature Bitumen Upgrading Process

Yuanzheng Zhu, Gimyeong Seong, Takio Noguchi, Akira Yoko, Takaaki Tomai, Seiichi Takami, Tadafumi Adschiri

ACS APPLIED ENERGY MATERIALS　3　(5)　4305-4319　2020

DOI： 10.1021/acsaem.0c00026 　

ISSN： 2574-0962
Continuous Flow Synthesis of Nanoparticles Using Supercritical Water: Process Design, Surface Control, and Nanohybrid Materials Peer-reviewed

A Yoko, G Seong, T Tomai, T Adschiri

KONA Powder and Particle Journal　(37)　28-41　2020

DOI： 10.14356/kona.2020002 　

ISSN： 0288-4534
Dispersion and rheology of nanofluids with various concentrations of organic modified nanoparticles: Modifier and solvent effects Peer-reviewed

Muhammad Zamir Hossain, Daisuke Hojo, Akira Yoko, Gimyeong Seong, Nobuaki Aoki, Takaaki Tomai, Seiichi Takami, Tadafumi Adschiri

Colloids and Surfaces A: Physicochemical and Engineering Aspects　583　(20)　123876　2019/12/20

DOI： 10.1016/j.colsurfa.2019.123876 　

ISSN： 0927-7757

eISSN： 1873-4359
Development of liquid scintillators loaded with organically modified ZrO₂ nanoparticles for detection of neutrinoless double-beta decay

Watanabe Akito, Magi Arisa, Yoko Akira, Seong Gimyeong, Tomai Takaaki, Adschiri Tadafumi, Koshimizu Masanori, Fujimoto Yutaka, Asai Keisuke

JSAP Annual Meetings Extended Abstracts　2019.2　399-399　2019/09/04
Publisher: The Japan Society of Applied Physics
DOI： 10.11470/jsapmeeting.2019.2.0_399 　

eISSN： 2436-7613
Process assessments for low-temperature methane reforming using oxygen carrier metal oxide nanoparticles Peer-reviewed

Akira Yoko, Yasuhiro Fukushima, Tadaaki Shimizu, Yasunori Kikuchi, Teruyuki Shimizu, Alexander Guzman-Urbina, Kakeru Ouchi, Haruka Hirai, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

Chemical Engineering and Processing - Process Intensification　142　107531　2019/08

DOI： 10.1016/j.cep.2019.107531 　

ISSN： 0255-2701
Fabrication of FeO <inf>x</inf> -ZrO <inf>2</inf> nanostructures for automotive three-way catalysts by supercritical hydrothermal synthesis with supercritical CO <inf>2</inf> drying Peer-reviewed

Gimyeong Seong, Tsutomu Aida, Yoshino Nakagawa, Tetsuya Nanba, Osamu Okada, Akira Yoko, Takaaki Tomai, Seiichi Takami, Tadafumi Adschiri

Journal of Supercritical Fluids　147　302-309　2019/05

DOI： 10.1016/j.supflu.2018.11.015 　

ISSN： 0896-8446
Formation dynamics of mesocrystals composed of organically modified CeO<inf>2</inf> nanoparticles: Analogy to a particle formation model Peer-reviewed

Andrzej Alexander Litwinowicz, Seiichi Takami, Shunsuke Asahina, Xiaodong Hao, Akira Yoko, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri

CrystEngComm　21　(25)　3836-3843　2019

DOI： 10.1039/c9ce00473d 　

eISSN： 1466-8033
Development of liquid scintillators loaded with alkaline earth molybdate nanoparticles for detection of neutrinoless double-beta decay Peer-reviewed

Sae Arai, Takio Noguchi, Tsutomu Aida, Akira Yoko, Takaaki Tomai, Tadafumi Adschiri, Masanori Koshimizu, Yutaka Fujimoto, Keisuke Asai

Journal of the Ceramic Society of Japan　127　(1)　28-34　2019/01

DOI： 10.2109/jcersj2.18146 　

ISSN： 1882-0743

eISSN： 1348-6535
Rapid synthesis of defective and composition-controlled metal chalcogenide nanosheets by supercritical hydrothermal processing Peer-reviewed

Yuta Nakayasu, Siobhan Bradley, Hiroaki Kobayashi, Keiichiro Nayuki, Yoshikazu Sasaki, Takaaki Tomai, Thomas Nann, Itaru Honma

Nanoscale Advances　1　(9)　3383-3387　2019

DOI： 10.1039/c9na00435a 　

eISSN： 2516-0230
One-Pot Rapid Synthesis of Mo(S,Se)<inf>2</inf> Nanosheets on Graphene for Highly Efficient Hydrogen Evolution Peer-reviewed

Yuta Nakayasu, Yoji Yasui, Ryosuke Taniki, Kotaro Oizumi, Hiroaki Kobayashi, Naoka Nagamura, Takaaki Tomai, Itaru Honma

ACS Sustainable Chemistry and Engineering　6　(9)　11502-11510　2018/09/04

DOI： 10.1021/acssuschemeng.8b01614 　

eISSN： 2168-0485
Analysis of Degradation Mechanisms in Quinone-Based Electrodes for Aqueous Electrolyte System via in Situ XRD Measurements Peer-reviewed

Takaaki Tomai, Hiroshi Hyodo, Daiki Komatsu, Itaru Honma

Journal of Physical Chemistry C　122　(5)　2461-2466　2018/02/08
Publisher: American Chemical Society
DOI： 10.1021/acs.jpcc.7b08124 　

ISSN： 1932-7455 1932-7447

eISSN： 1932-7455
Inversion domain boundaries in MoSe<inf>2</inf> layers Peer-reviewed

Quang Duc Truong, Nguyen Tuan Hung, Yuta Nakayasu, Keiichiro Nayuki, Yoshikazu Sasaki, Devaraju Murukanahally Kempaiah, Li Chang Yin, Takaaki Tomai, Riichiro Saito, Itaru Honma

RSC Advances　8　(58)　33391-33397　2018

DOI： 10.1039/c8ra07205a 　

eISSN： 2046-2069
Capacity improvement of the carbon-based electrochemical capacitor by zigzag-edge introduced graphene Peer-reviewed

Naoki Tamura, Takaaki Tomai, Nobuto Oka, Itaru Honma

APPLIED SURFACE SCIENCE　428　986-989　2018/01

DOI： 10.1016/j.apsusc.2017.09.187 　

ISSN： 0169-4332

eISSN： 1873-5584
Synthesis of ZrO2 nanoparticles for liquid scintillators used in the detection of neutrinoless double beta decay Peer-reviewed

Susumu Takigawa, Masanori Koshimizu, Takio Noguchi, Tsutomu Aida, Seiichi Takami, Tadafumi Adschiri, Yutaka Fujimoto, Akira Yoko, Gimyeong Seong, Takaaki Tomai, Keisuke Asai

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY　314　(2)　611-615　2017/11

DOI： 10.1007/s10967-017-5392-x 　

ISSN： 0236-5731

eISSN： 1588-2780
Fabrication of Cu2ZnSnS4 thin films using a Cu-Zn-Sn-O amorphous precursor and supercritical fluid sulfurization Peer-reviewed

Yuta Nakayasu, Takaaki Tomai, Nobuto Oka, Kanako Shojiki, Shigeyuki Kuboya, Ryuji Katayama, Liwen Sang, Masatomo Sumiya, Itaru Honma

THIN SOLID FILMS　638　244-250　2017/09

DOI： 10.1016/j.tsf.2017.07.063 　

ISSN： 0040-6090
Structure-Based Selective Adsorption of Graphene on a Gel Surface: Toward Improving the Quality of Graphene Nanosheets Peer-reviewed

Takaaki Tomai, Shunichi Ishiguro, Naoki Tamura, Yuta Nakayasu, Itaru Honma

LANGMUIR　33　(22)　5406-5411　2017/06

DOI： 10.1021/acs.langmuir.7b00254 　

ISSN： 0743-7463
Fabrication of three-dimensional CuInS2 solar-cell structure via supercritical fluid processing Peer-reviewed

Takaaki Tomai, Yoji Yasui, Shinji Watanabe, Yuta Nakayasu, Liwen Sang, Masatomo Sumiya, Takeshi Momose, Itaru Honma

JOURNAL OF SUPERCRITICAL FLUIDS　120　448-452　2017/02

DOI： 10.1016/j.supflu.2016.05.026 　

ISSN： 0896-8446

eISSN： 1872-8162
High-energy-density electrochemical flow capacitors containing quinone derivatives impregnated in nanoporous carbon beads Peer-reviewed

Takaaki Tomai, Hayate Saito, Itaru Honma

JOURNAL OF MATERIALS CHEMISTRY A　5　(5)　2188-2194　2017/02

DOI： 10.1039/c6ta08733g 　

ISSN： 2050-7488

eISSN： 2050-7496
An organic proton battery employing two redox-active quinones trapped within the nanochannels of zeolite-templated carbon Peer-reviewed

Khanin Nueangnoraj, Takaaki Tomai, Hiromoto Nishihara, Takashi Kyotani, Itaru Honma

Carbon　107　831-836　2016/06

DOI： 10.1016/j.carbon.2016.06.096 　

ISSN： 0008-6223
Fabrication of CuInSe2 and Cu2ZnSnSe4 films from metal-oxide precursors and SeO2 using supercritical ethanol Peer-reviewed

Takaaki Tomai, Yuta Nakayasu, Miki Yanaka, Itaru Honma

JOURNAL OF SUPERCRITICAL FLUIDS　101　48-53　2015/06

DOI： 10.1016/j.supflu.2015.03.003 　

ISSN： 0896-8446

eISSN： 1872-8162
Controllable bandgap of Cu2ZnSn(S,Se)(4) thin films via simultaneous supercritical fluid chalcogenization Peer-reviewed

Yuta Nakayasu, Takaaki Tomai, Nobuto Oka, Itaru Honma

APPLIED PHYSICS EXPRESS　8　(2)　021201　2015/02

DOI： 10.7567/APEX.8.021201 　

ISSN： 1882-0778

eISSN： 1882-0786
Enhancement of energy density in organic redox capacitor by improvement of electric conduction network Peer-reviewed

Daiki Komatsu, Takaaki Tomai, Itaru Honma

JOURNAL OF POWER SOURCES　274　412-416　2015/01

DOI： 10.1016/j.jpowsour.2014.10.069 　

ISSN： 0378-7753

eISSN： 1873-2755
Structural Analysis and Electrochemical Performance of Li2CoPO4F Cathode Materials Peer-reviewed

Quang Duc Truong, Murukanahally K. Devaraju, Yoshiyuki Ganbe, Takaaki Tomai, Itaru Honma

ELECTROCHIMICA ACTA　127　245-251　2014/05

DOI： 10.1016/j.electacta.2014.02.026 　

ISSN： 0013-4686

eISSN： 1873-3859
Relocation of Cobalt Ions in Electrochemically Delithiated LiCoPO4 Cathode Materials Peer-reviewed

Quang Duc Truong, Murukanahally Kempaiah Deyaraju, Yoshikazu Sasaki, Hiroshi Hyodo, Takaaki Tomai, Itaru Honma

CHEMISTRY OF MATERIALS　26　(9)　2770-2773　2014/05

DOI： 10.1021/cm501452p 　

ISSN： 0897-4756

eISSN： 1520-5002
Controlling the shape of LiCoPO4 nanocrystals by supercritical fluid process for enhanced energy storage properties Peer-reviewed

Quang Duc Truong, Murukanahally Kempaiah Devaraju, Yoshiyuki Ganbe, Takaaki Tomai, Itaru Honma

SCIENTIFIC REPORTS　4　2014/02

DOI： 10.1038/srep03975 　

ISSN： 2045-2322
Supercritical fluid methods for synthesizing cathode materials towards lithium ion battery applications Peer-reviewed

M. K. Devaraju, Q. D. Truong, T. Tomai, I. Honma

RSC ADVANCES　4　(52)　27452-27470　2014

DOI： 10.1039/c4ra01772b 　

ISSN： 2046-2069
Metal-free aqueous redox capacitor via proton rocking-chair system in an organic-based couple Peer-reviewed

Takaaki Tomai, Satoshi Mitani, Daiki Komatsu, Yuji Kawaguchi, Itaru Honma

SCIENTIFIC REPORTS　4　2014/01

DOI： 10.1038/srep03591 　

ISSN： 2045-2322
Supercritical fluid assisted synthesis of N-doped graphene nanosheets and their capacitance behavior in ionic liquid and aqueous electrolytes Peer-reviewed

Marappan Sathish, Satoshi Mitani, Takaaki Tomai, Itaru Honma

JOURNAL OF MATERIALS CHEMISTRY A　2　(13)　4731-4738　2014

DOI： 10.1039/c3ta15136k 　

ISSN： 2050-7488

eISSN： 2050-7496
Antisite defects in LiCoPO4 nanocrystals synthesized via a supercritical fluid process Peer-reviewed

Murukanahally Kempaiah Devaraju, Quang Duc Truong, Takaaki Tomai, Hiroshi Hyodo, Yoshikazu Sasaki, Itaru Honma

RSC ADVANCES　4　(94)　52410-52414　2014

DOI： 10.1039/c4ra10689j 　

ISSN： 2046-2069
Analysis of selenization in supercritical ethanol for the production of compound semiconductor films Peer-reviewed

Takaaki Tomai, Miki Yanaka, Itaru Honma

JOURNAL OF SUPERCRITICAL FLUIDS　83　41-46　2013/11

DOI： 10.1016/j.supflu.2013.08.013 　

ISSN： 0896-8446

eISSN： 1872-8162
Supercritical hydrothermal synthesis of rod like Li2FeSiO4 particles for cathode application in lithium ion batteries Peer-reviewed

M. K. Devaraju, Takaaki Tomai, Itaru Honma

ELECTROCHIMICA ACTA　109　75-81　2013/10

DOI： 10.1016/j.electacta.2013.07.056 　

ISSN： 0013-4686

eISSN： 1873-3859
Direct Observation of Antisite Defects in LiCoPO4 Cathode Materials by Annular Dark- and Bright-Field Electron Microscopy Peer-reviewed

Quang Duc Truong, Murukanahally Kempaiah Devaraju, Takaaki Tomai, Itaru Honma

ACS APPLIED MATERIALS & INTERFACES　5　(20)　9926-9932　2013/10

DOI： 10.1021/am403018n 　

ISSN： 1944-8244
One-Step Production of Anisotropically Etched Graphene Using Supercritical Water Peer-reviewed

Takaaki Tomai, Naoki Tamura, Itaru Honma

ACS MACRO LETTERS　2　(9)　794-798　2013/09

DOI： 10.1021/mz400186t 　

ISSN： 2161-1653
Pt sub-nano/nanoclusters stabilized at the edge of nanographene sheets and their catalytic performance Peer-reviewed

Takaaki Tomai, Yuji Kawaguchi, Satoshi Mitani, Itaru Honma

ELECTROCHIMICA ACTA　92　421-426　2013/03

DOI： 10.1016/J.electacta.2013.01.067 　

ISSN： 0013-4686
Novel processing of lithium manganese silicate nanomaterials for Li-ion battery applications Peer-reviewed

Murukanahally Kempaiah Devaraju, Takaaki Tomai, Atsushi Unemoto, Itaru Honma

RSC ADVANCES　3　(2)　608-615　2013

DOI： 10.1039/c2ra22409g 　

ISSN： 2046-2069
X-Ray Emission Spectra of Graphene Nanosheets Peer-reviewed

Bogdan Ilkiv, Svitlana Petrovska, Ruslan Sergiienko, Takaaki Tomai, Etsuro Shibata, Takashi Nakamura, Itaru Honma, Yaroslav Zaulychnyy

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY　12　(12)　8913-8919　2012/12

DOI： 10.1166/jnn.2012.6787 　

ISSN： 1533-4880
Graphene anchored with Fe3O4 nanoparticles as anode for enhanced Li-ion storage Peer-reviewed

Marappan Sathish, Takaaki Tomai, Itaru Honma

JOURNAL OF POWER SOURCES　217　85-91　2012/11

DOI： 10.1016/j.jpowsour.2012.05.099 　

ISSN： 0378-7753

eISSN： 1873-2755
Mass transport properties in quasi-solidified lithium-ion conducting ionic liquids at oxide particle surfaces Peer-reviewed

Atsushi Unemoto, Yoshiki Iwai, Satoshi Mitani, Seung-Wook Baek, Seitaro Ito, Takaaki Tomai, Junichi Kawamura, Itaru Honma

SOLID STATE IONICS　225　416-419　2012/10

DOI： 10.1016/j.ssi.2012.01.020 　

ISSN： 0167-2738
Nanographene production from platelet carbon nanofiber by supercritical fluid exfoliation Peer-reviewed

Takaaki Tomai, Yuji Kawaguchi, Itaru Honma

APPLIED PHYSICS LETTERS　100　(23)　2012/06

DOI： 10.1063/1.4726113 　

ISSN： 0003-6951
Ultrathin SnS2 Nanoparticles on Graphene Nanosheets: Synthesis, Characterization, and Li-Ion Storage Applications Peer-reviewed

Marappan Sathish, Satoshi Mitani, Takaaki Tomai, Itaru Honma

JOURNAL OF PHYSICAL CHEMISTRY C　116　(23)　12475-12481　2012/06

DOI： 10.1021/jp303121n 　

ISSN： 1932-7447
Application of quasi-solid-state silica nanoparticles-ionic liquid composite electrolytes to all-solid-state lithium secondary battery Peer-reviewed

Seitaro Ito, Atsushi Unemoto, Hideyuki Ogawa, Takaaki Tomai, Itaru Honma

JOURNAL OF POWER SOURCES　208　271-275　2012/06

DOI： 10.1016/j.jpowsour.2012.02.049 　

ISSN： 0378-7753
Nanocrystalline tin compounds/graphene nanocomposite electrodes as anode for lithium-ion battery Peer-reviewed

Marappan Sathish, Satoshi Mitani, Takaaki Tomai, Atsushi Unemoto, Itaru Honma

JOURNAL OF SOLID STATE ELECTROCHEMISTRY　16　(5)　1767-1774　2012/05

DOI： 10.1007/s10008-012-1669-8 　

ISSN： 1432-8488

eISSN： 1433-0768
Nanographene derived from carbon nanofiber and its application to electric double-layer capacitors Peer-reviewed

Satoshi Mitani, Marappan Sathish, Dinesh Rangappa, Atsushi Unemoto, Takaaki Tomai, Itaru Honma

ELECTROCHIMICA ACTA　68　146-152　2012/04

DOI： 10.1016/j.electacta.2012.02.034 　

ISSN： 0013-4686
Ultrathin Nanosheets of Li2MSiO4 (M = Fe, Mn) as High-Capacity Li-Ion Battery Electrode Peer-reviewed

Dinesh Rangappa, Kempaiah Devaraju Murukanahally, Takaaki Tomai, Atsushi Unemoto, Itaru Honma

NANO LETTERS　12　(3)　1146-1151　2012/03

DOI： 10.1021/nl202681b 　

ISSN： 1530-6984
Electrical conductivity and dynamics of quasi-solidified lithium-ion conducting ionic liquid at oxide particle surfaces Peer-reviewed

Atsushi Unemoto, Yoshiki Iwai, Satoshi Mitani, Seung-Wook Baek, Seitaro Ito, Takaaki Tomai, Junichi Kawamura, Itaru Honma

SOLID STATE IONICS　201　(1)　11-20　2011/10

DOI： 10.1016/j.ssi.2011.08.008 　

ISSN： 0167-2738

eISSN： 1872-7689
Low-Temperature Direct Conversion of Cu-In Films to CuInSe2 via Selenization Reaction in Supercritical Fluid Peer-reviewed

Takaaki Tomai, Dinesh Rangappa, Itaru Honma

ACS APPLIED MATERIALS & INTERFACES　3　(9)　3268-3271　2011/09

DOI： 10.1021/am200899q 　

ISSN： 1944-8244
Generation of laser-induced plasma in supercritical water and vibrational spectroscopic study of accompanying stimulated Raman scattering Peer-reviewed

Hiroharu Yui, Takaaki Tomai, Masayoshi Sawada, Kazuo Terashima

APPLIED PHYSICS LETTERS　99　(9)　2011/08

DOI： 10.1063/1.3627161 　

ISSN： 0003-6951
MnO2 assisted oxidative polymerization of aniline on graphene sheets: Superior nanocomposite electrodes for electrochemical supercapacitors Peer-reviewed

Marappan Sathish, Satoshi Mitani, Takaaki Tomai, Itaru Honma

JOURNAL OF MATERIALS CHEMISTRY　21　(40)　16216-16222　2011

DOI： 10.1039/c1jm12946e 　

ISSN： 0959-9428
Development of sheet-like dielectric barrier discharge microplasma generated in supercritical fluids and its application to the synthesis of carbon nanomaterials Peer-reviewed

Hirokazu Kikuchi, Sven Stauss, Sho Nakahara, Fumiyoshi Matsubara, Takaaki Tomai, Takehiko Sasaki, Kazuo Terashima

JOURNAL OF SUPERCRITICAL FLUIDS　55　(1)　325-332　2010/11

DOI： 10.1016/j.supflu.2010.05.029 　

ISSN： 0896-8446
Development of a dielectric-barrier discharge enhanced microplasma jet Peer-reviewed

Shinya Kiriu, Hiroyuki Miyazoe, Fumitoshi Takamine, Masaki Sai, Jai Hyuk Choi, Takaaki Tomai, Kazuo Terashima

APPLIED PHYSICS LETTERS　94　(19)　2009/05

DOI： 10.1063/1.3130183 　

ISSN： 0003-6951
Raman spectroscopy of reaction fields induced by plasma in supercritical CO2 Peer-reviewed

Takaaki Tomai, Hiroharu Yui, Kazuo Terashima

APPLIED PHYSICS LETTERS　94　(15)　2009/04

DOI： 10.1063/1.3116622 　

ISSN： 0003-6951
Disinfection of E. coli by nonthermal microplasma electrolysis in normal saline solution Peer-reviewed

Yukinori Sakiyama, Takaaki Tomai, Masaru Miyano, David B. Graves

APPLIED PHYSICS LETTERS　94　(16)　2009/04

DOI： 10.1063/1.3122148 　

ISSN： 0003-6951
Gas-temperature-dependent generation of cryoplasma jet under atmospheric pressure Peer-reviewed

Yuri Noma, Jai Hyuk Choi, Takaaki Tomai, Kazuo Terashima

APPLIED PHYSICS LETTERS　93　(10)　2008/09

DOI： 10.1063/1.2980436 　

ISSN： 0003-6951
Development of a dielectric barrier discharge (DBD) cryo-microplasma: generation and diagnostics Peer-reviewed

Daisuke Ishihara, Yuri Noma, Sven Stauss, Masaki Sai, Takaaki Tomai, Kazuo Terashima

PLASMA SOURCES SCIENCE & TECHNOLOGY　17　(3)　2008/08

DOI： 10.1088/0963-0252/17/3/035008 　

ISSN： 0963-0252
Temperature-dependent transition of discharge pattern of He/air cryoplasma Peer-reviewed

Jai Hyuk Choi, Yuri Noma, Takaaki Tomai, Kazuo Terashima

APPLIED PHYSICS LETTERS　93　(8)　2008/08

DOI： 10.1063/1.2976308 　

ISSN： 0003-6951
Cu films deposition by dielectric barrier discharge in supercritical CO2, Ar and Xe environments Peer-reviewed

Hirokazu Kikuchi, Hirotake Kubo, Takaaki Tomai, Kazuo Terashima

THIN SOLID FILMS　516　(19)　6677-6682　2008/08

DOI： 10.1016/j.tsf2007.11.042 　

ISSN： 0040-6090
Development and diagnostics of novel materials processing using supercritical fluid plasma generated by space- and time-restricted discharge Peer-reviewed

Takaaki Tomai, Hirokazu Kikuchi, Sho Nakahara, Hiroharu Yui, Kazuo Terashima

Trans. Mat. Res. Soc. Jpn　33　355-358　2008/05
Gas-temperature-dependent characteristics of cryo-dielectric barrier discharge plasma under atmospheric pressure Peer-reviewed

Yuri Noma, Jai Hyuk Choi, Sven Stauss, Takaaki Tomai, Kazuo Terashima

APPLIED PHYSICS EXPRESS　1　(4)　0460011-0460013　2008/04

DOI： 10.1143/APEX.1.046001 　

ISSN： 1882-0778
Carbon materials syntheses using dielectric barrier discharge microplasma in supercritical carbon dioxide environments Peer-reviewed

Takaaki Tomai, Ken Katahira, Hirotake Kubo, Yoshiki Shimizu, Takeshi Sasaki, Naoto Koshizaki, Kazuo Terashima

JOURNAL OF SUPERCRITICAL FLUIDS　41　(3)　404-411　2007/07

DOI： 10.1016/j.supflu.2006.12.003 　

ISSN： 0896-8446
Microplasma synthesis of carbon nanostructured materials Peer-reviewed

Kazuo Terashima, Takaaki Tomai, Daisuke Ishihara, Yoshiki Shimizu, Takeshi Sasaki, Naoto Koshizaki, Takeki Sakurai

Adv. Sci. Techno　Vol.48　9月16日　2006/12
Micrometer-scale discharge in high-pressure H2O and Xe environments including supercritical fluid Peer-reviewed

Masayoshi Sawada, Takaaki Tomai, Tsuyoh Ito ito, Hideyuki Fujiwara, Kazuo Terashima

JOURNAL OF APPLIED PHYSICS　100　(12)　2006/12

DOI： 10.1063/1.2400802 　

ISSN： 0021-8979
Generation of dielectric barrier discharge in high-pressure N-2 andCO(2) environments up to supercritical conditions Peer-reviewed

T Tomai, T Ito, K Terashima

THIN SOLID FILMS　506　409-413　2006/05

DOI： 10.1016/j.tsf.2005.08.101 　

ISSN： 0040-6090

Show all ︎Show first 5

Misc. 133

急速水熱合成プロセスによるZrO₂ナノ粒子の芳香族溶媒中での分散性向上に向けた前駆体の検討

渡邊晶斗, 横哲, 成基明, 笘居高明, 阿尻雅文, 林大和, 川本弘樹, 藤本裕, 越水正典, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　56th　2025
Development of a ZrO₂ nanoparticle-dispersed liquid scintillator for neutrinoless double beta decay search experiments

渡邊晶斗, 横哲, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 川本弘樹, 藤本裕, 越水正典, 浅井圭介

応用物理学会学術講演会講演予稿集(CD-ROM)　72nd　2025

ISSN： 2436-7613
白濁法および吸光度測定法による有機修飾ナノ粒子のエステルおよび芳香族中における分散・凝集の評価

松田海希, 山崎陸人, 楊乃樹, 松田弘幸, 大田昌樹, 笘居高明, 猪股宏

化学工学会年会研究発表講演要旨集(CD-ROM)　90th　2025
Synthesis of uniformly dispersed ZrO₂ nanoparticles via subcritical hydrothermal process using complex precursors

渡邊晶斗, 横哲, 横哲, SEONG G., 笘居高明, 阿尻雅文, 林大和, 川本弘樹, 藤本裕, 越水正典, 浅井圭介

日本セラミックス協会年会講演予稿集(Web)　2025　2025
Compositional dependence of phonon mean free path in silicate glasses and melts

助永壮平, 小里文太, 二階堂将太郎, 横哲, 笘居高明, 深谷宏, 柴田浩幸, 小野寺陽平, 小原真司, 清水雅弘, 川西咲子, 遠藤理恵, 西剛史, 太田弘道

材料とプロセス(CD-ROM)　38　(1)　2025

ISSN： 1882-8922
白濁法および吸光度測定法による有機修飾ナノ粒子+有機溶媒系の分散・凝集の評価

山崎陸人, 松田海希, 楊乃樹, 松田弘幸, 大田昌樹, 笘居高明, 猪股宏

分離技術会年会技術・研究発表講演要旨集(Web)　2024　2024
Study on ZrO₂ nanoparticle washing process to enhance light yield of Zr-loaded liquid scintillator

渡邊晶斗, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　71st　2024

ISSN： 2758-4704
二種の芳香族カルボン酸を用いた有機修飾ZrO₂ナノ粒子の合成および液体シンチレータへの応用

渡邊晶斗, 横哲, 成基明, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 越水正典, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　55th　2024
Development of ZrO₂ nanoparticle dispersion with excellent transparency in the visible light region

渡邊晶斗, 横哲, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 越水正典, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　85th　2024

ISSN： 2758-4704
CeO₂ナノ粒子から合成したBaCe酸窒素水素化物によるアンモニア合成

仁井田海渡, 宮崎雅義, 横哲, 笘居高明, 阿尻雅文, 細野秀雄, 北野政明

触媒討論会予稿集(CD-ROM)　133rd　2024

ISSN： 2758-3503
High-concentration loading of ZrO₂ nanoparticles into organic liquid scintillators by dual-molecule surface modification

渡邊晶斗, 越水正典, 横哲, SEONG G., 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

日本セラミックス協会年会講演予稿集(Web)　2024　2024
Compositional dependence of phonon mean free path in oxide glasses

助永壮平, 小里文太, 江部健太, 横哲, 笘居高明, 川西咲子, 川西咲子, 柴田浩幸, 清水雅弘, 遠藤理恵, 西剛史, 太田弘道

材料とプロセス(CD-ROM)　37　(1)　2024

ISSN： 1882-8922
プラスチックリサイクルにおける超臨界流体プロセスの貢献—Supercritical Fluids Process for Plastic Chemical Recycle

笘居高明, 成基明, 横哲, 後藤元信, 阿尻雅文

触媒 = Catalysts & catalysis　65　(2)　125-131　2023/04
Publisher: 東京 : 触媒学会
ISSN： 0559-8958
溶解度パラメータに基づく有機修飾ナノ粒子の溶解度相関モデルの開発

高村優生菜, 大田昌樹, 渡邉賢, 猪股宏, 笘居高明

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　54th　2023
レーザ光散乱を利用した白濁法による有機修飾ナノ粒子+有機溶媒系の分散・凝集の評価

楊乃樹, 松田弘幸, 大田昌樹, 笘居高明, 猪股宏, 栗原清文, 栃木勝己

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　54th　2023
貴金属担持がCeO₂ナノ触媒の劣化抑制に与える影響の解明

高橋大希, 笘居高明, 横哲, 成基明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　88th　2023
金属酸化物超微細ナノ粒子の連続水熱合成法開発

横哲, 千葉信孝, 尾村悠希, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　88th　2023
Optical characterization of two-dimensional sheet composed of metal/CeO₂ nanoparticles and their application to highly sensitive plasmonic sensor

林結華, 相田裕輝子, 梶野祐人, 有馬祐介, 横哲, 成基明, 笘居高明, 阿尻雅文, 玉田薫, 玉田薫

プラズモニクスシンポジウム(CD-ROM)　19th　2023
Plasmonic Nanocavity Structure with Self-Assembled CeO₂ Nanoparticle Sheet

梶野祐人, 小副川智哉, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 玉田薫, 玉田薫

プラズモニクスシンポジウム(CD-ROM)　19th　2023
Tuning of plasmon resonance wavelength by nanocavity structure using CeO₂ self-assembled nanoparticle films

小副川智哉, 梶野祐人, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 玉田薫, 玉田薫

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　84th　2023

ISSN： 2758-4704
Application of SrMoO4 nanoparticle dispersion to scintillation detectors

渡邊晶斗, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　84th　2023

ISSN： 2758-4704
Investigation of the mechanism of superspreading of nanofluid droplet based on measurements of nano liquid film near the contact line

庄司衛太, 星野瑛, 齋藤大河, 琵琶哲志, 久保正樹, 塚田隆夫, 笘居高明, 阿尻雅文

日本伝熱シンポジウム講演論文集(CD-ROM)　60th　2023

ISSN： 1346-1532
Investigation of solvent dependence of dispersion and aggregation behavior of organically modified metal oxide nanoparticles in solution.

工藤康大, 二宮翔, 横哲, SEONG G., 笘居高明, 阿尻雅文, 西堀麻衣子

日本セラミックス協会年会講演予稿集(Web)　2023　2023
Synthesis of surface-modified ZrO₂ nanoparticles for the development of nanoparticle-loaded organic scintillators

渡邊晶斗, 越水正典, 横哲, SEONG G., 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

日本セラミックス協会年会講演予稿集(Web)　2023　2023
Fabrication of plasmonic nanocavity structure using CeO₂ self-assembled nanoparticle sheet

梶野祐人, 小副川智哉, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 玉田薫, 玉田薫

応用物理学会春季学術講演会講演予稿集(CD-ROM)　70th　2023

ISSN： 2436-7613
Study on surface modification of ZrO₂ nanoparticle for the development of nanoparticle-loaded organic scintillators

渡邊晶斗, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　70th　2023

ISSN： 2436-7613
Development of highly sensitive plasmonic sensor using two dimensional sheet composed of Au and CeO₂ mixed nanoparticles

林結華, 相田裕輝子, 梶野祐人, 有馬祐介, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 玉田薫, 玉田薫

応用物理学会春季学術講演会講演予稿集(CD-ROM)　70th　2023

ISSN： 2436-7613
ナノフルイド液滴蒸発時の動的濡れと堆積ナノ粒子層の光学測定

庄司衛太, 齋藤大河, 琵琶哲志, 久保正樹, 塚田隆夫, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　87th　2022
有機修飾ナノ粒子の溶媒分散性向上への高圧CO₂の利用

猪股宏, DUEREH Alif, 笘居高明, 阿尻雅文

化学工学会大会(Web)　2022　2022
錯体を利用した流通式水熱合成における有機修飾酸化セリウムのナノスケール精密制御

尾村悠希, 尾村悠希, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　87th　2022
金属酸化物ナノ粒子ナノサイズ化による格子ひずみとその酸素貯蔵能

千葉信孝, 横哲, 笘居高明, 成基明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　87th　2022
高濃度・非凝集系ナノ粒子分散液の粘性挙動の粒子径依存性

新井裕子, 笘居高明, 横哲, 成基明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　87th　2022
h-BNフィラーの表面有機修飾が高熱伝導性樹脂中の界面熱抵抗および配向性に与える影響

大沼遼香, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　87th　2022
Effect of Lattice Oxygen in Supercritical Hydrothermally Synthesized CeO₂ Nanoparticles on Ce Valence and Lattice Strain

二宮翔, 尾村悠希, 横哲, SEONG Gimyeong, 笘居高明, 山本達, 阿尻雅文, 西堀麻衣子

ナノ学会大会講演予稿集　20th　2022
Ce-O chemical bonding in cerium oxide nanoparticles synthesized by supercritical hydrothermal synthesis

二宮翔, 尾村悠希, 横哲, SEONG G., 笘居高明, 山本達, 阿尻雅文, 西堀麻衣子

日本セラミックス協会年会講演予稿集(Web)　2022　2022
超臨界水熱合成法によるCeO₂ナノ粒子添加プラスチックシンチレータの作製

小松崎崇介, 渡邊晶斗, 佐藤敦史, 越水正典, 横哲, 成基明, 笘居高明, 阿尻雅文, 岸本俊二, 藤本裕, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　53rd　2022
表面有機修飾による高熱伝導性ハイブリッド材料中h-BNフィラー分散性制御および熱伝導性向上

大沼遼香, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　53rd　2022
超臨界水熱場における溶解-再析出を利用したPt-CeO₂複合酸化物ナノ粒子の表面構造制御

高橋大希, 笘居高明, 横哲, 成基明, 阿尻雅文, 阿尻雅文, 阿尻雅文

東北大学多元物質科学研究所研究発表会講演予稿集　22nd　2022
流通式超臨界水熱合成法による金属酸化物ナノ粒子合成とナノサイズ化による格子歪制御

千葉信孝, 横哲, 笘居高明, 成基明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　53rd　2022
流通式水熱法における有機修飾金属酸化物ナノ粒子の核生成機構解明とオングストローム制御

尾村悠希, 尾村悠希, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　53rd　2022
超臨界水熱場における溶解-再析出を利用した複合酸化物ナノ材料の表面構造制御

高橋大希, 笘居高明, 横哲, 成基明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　53rd　2022
Synthesis of dual molecule-modified ZrO₂ nanoparticles for high-concentration loading into liquid scintillators and exploration of modifier molecules

渡邊晶斗, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　83rd　2022

ISSN： 2758-4704
Fabrication of surface modified CeO₂ nanoparticle-doped plastic scintillators and evaluation of high-energy X-ray detection characteristic

小松崎崇介, 越水正典, 藤本裕, 渡邊晶斗, 佐藤敦史, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 岸本俊二, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　83rd　2022

ISSN： 2758-4704
Synthesis of dual molecule-modified ZrO₂ nanoparticles for development of liquid scintillators for double β decay experiments

渡邊晶斗, 越水正典, 横哲, SEONG G., 笘居高明, 阿尻雅文, 阿尻雅文, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

日本セラミックス協会年会講演予稿集(Web)　2022　2022
Examination of charging ratio of modifiers for improving nanoparticle dispersion concentration in ZrO₂ nanoparticle-loaded liquid scintillator

渡邊晶斗, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　69th　2022

ISSN： 2436-7613
Development of plastic scintillators based on PS and PVK and effect of mixing ratio

小松崎崇介, 渡邊晶斗, 佐藤敦史, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 岸本俊二, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　69th　2022

ISSN： 2436-7613
ナノフルイド液滴蒸発時の動的濡れと堆積ナノ粒子層の光学測定

庄司衛太, 齋藤大河, 琵琶哲志, 久保正樹, 塚田隆夫, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　52nd　2021
水熱場における有機-無機表面反応と金属酸化物ナノ粒子成長のメカニズム

尾村悠希, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　86th　2021
分子系の結晶生成理論のアナロジーによる有機修飾ナノ粒子の分散・凝集挙動

迫中あやめ, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　86th　2021
cubic CeO₂表面での還元反応を利用した金属ナノ粒子担持法の開発

古屋洸, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　86th　2021
超臨界水熱法による有機修飾酸化セリウムナノ粒子合成における前駆体セリウム価数の影響

尾村悠希, 尾村悠希, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　52nd　2021
酸化還元特性を利用したCeO₂表面への高分散金属触媒担持法の開発

古屋洸, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　52nd　2021
Fabrication of a Heavy metal compound nanoparticles-doped plastic scintillator and evaluation of high-energy X-ray detection characteristic

小松崎崇介, 渡邊晶斗, 佐藤敦史, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 岸本俊二, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

ISSN： 2758-4704
Control of nanoparticle dispersibility in ZrO₂ nanoparticle-loaded liquid scintillator for double β decay experiment

渡邊晶斗, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

ISSN： 2758-4704
Search for phosphor types in plastic scintillators containing Bi₂O₃

小松崎崇介, 渡邊晶斗, 佐藤敦史, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 岸本俊二, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

ISSN： 2758-4704
二重β崩壊実験用液体シンチレータへの装荷を企図したZrO₂ナノ粒子の合成における修飾剤の検討

渡邊晶斗, 間木ありさ, 横哲, 成基明, 笘居高明, 阿尻雅文, 林大和, 越水正典, 藤本裕, 浅井圭介

化学工学会年会研究発表講演要旨集(CD-ROM)　86th　2021
液体シンチレータへの高濃度分散を企図した二種分子修飾ZrO₂ナノ粒子の合成

渡邊晶斗, 越水正典, 横哲, 成基明, 笘居高明, 阿尻雅文, 阿尻雅文, 阿尻雅文, 林大和, 藤本裕, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　52nd　2021
超臨界水熱合成法によるBi₂O₃ナノ粒子添加プラスチックシンチレータの作製と高エネルギー光子検出特性

小松崎崇介, 渡邊晶斗, 佐藤敦史, 越水正典, 横哲, 成基明, 笘居高明, 阿尻雅文, 岸本俊二, 藤本裕, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　52nd　2021
Synthesis of aromatic carboxylic acid-modified ZrO₂ nanoparticles for liquid scintillators used in the detection of neutrinoless double beta-decay

渡邊晶斗, 間木ありさ, 横哲, SEONG G., 笘居高明, 阿尻雅文, 林大和, 越水正典, 藤本裕, 浅井圭介

日本セラミックス協会年会講演予稿集(Web)　2021　2021
CeO₂ナノ粒子を用いたケミカルルーピング型メタン改質プロセスの反応解析

黒田悠介, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　85th　2020
超臨界有機修飾による酸化鉄ナノ粒子の露出面制御とその酸素貯蔵能

渡邉裕太, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　85th　2020
超臨界水熱フロー合成システムによる高濃度クロムドープセリアナノ粒子の形成機構の解明

迫中あやめ, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　85th　2020
超臨界混合溶媒を用いたチタン酸バリウムのナノサイズ化

横哲, 内藤浩輝, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　85th　2020
水熱有機修飾による酸化物ナノ粒子の露出面制御と低温酸素貯蔵能

笘居高明, 唐亮宇, 渡邉裕太, 横哲, 成基明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　85th　2020
超臨界有機修飾による酸化鉄ナノ粒子のサイズ・露出面制御とその酸素貯蔵能

渡邉裕太, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
超臨界混合溶媒を用いたBaTiO₃の構造形成とナノサイズ化

横哲, 内藤浩輝, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
流通式超臨界水熱合成法による金属ドープセリアナノ粒子の合成におけるドーパントの挙動

迫中あやめ, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
ケミカルルーピング型低温メタン改質プロセスにおける部分酸化過程の速度論的解析

黒田悠介, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
水熱反応場における金属酸化物表面修飾反応のメカニズム解析

尾村悠希, 横哲, 成其明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
有機修飾ナノ粒子の分子的・粉体的特徴が溶媒中拡散係数に与える影響

笘居高明, 田島直哉, 横哲, 成基明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
複合ナノ触媒によるメタン改質反応

古屋洸, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
Synthesis of Bi₂O₃ nanoparticles and their application as a PVK-based plastic scintillator for X-ray detection

間木ありさ, 越水正典, 藤本裕, 横哲, SEONG G., 笘居高明, 阿尻雅文, 岸本俊二, 錦戸文彦, 浅井圭介

日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)　33rd　2020
Effect of temperature conditions on organically modified ZrO₂ nanoparticles loaded on liquid scintillators for neutrinoless double beta-decay

渡邊晶斗, 間木ありさ, 横哲, SEONG G., 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)　33rd　2020
Fabrication of a Bi-doped PVK-based plastic scintillator and evaluation of high-energy X-ray detection characteristics

間木ありさ, 加賀美佳, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 岸本俊二, 春木理恵, 錦戸文彦, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　67th　2020

ISSN： 2436-7613
Fluorescence properties in Bi₂O₃-loaded PVK-based plastic scintillator for high-energy X-ray detection

間木ありさ, 越水正典, 藤本裕, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 岸本俊二, 錦戸文彦, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　81st　2020

ISSN： 2758-4704
ニュートリノレス二重ベータ崩壊検出を企図した液体シンチレータ用有機修飾ジルコニアナノ粒子の合成

渡邊晶斗, 間木ありさ, 横哲, 成基明, 笘居高明, 阿尻雅文, 林大和, 越水正典, 藤本裕, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　51st　2020
超臨界水熱法によるナノ粒子連続合成 : プロセスデザインと応用展開—特集ナノテクノロジーが化学技術を支援する

横哲, 成基明, 笘居高明, 阿尻雅文

化学装置　61　(3)　36-40　2019/03
Publisher: 東京 : 工業通信
ISSN： 0368-4849
溶媒中における有機修飾酸化物ナノ粒子の分散性評価とその制御

笘居高明, 木村統志, 田島直哉, 横哲, 成基明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
Elucidation of formation mechanism of metal oxides nanoparticle using supercritical mixed solvents

内藤浩輝, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
低温ケミカルルーピング改質プロセスへの演繹的設計手法の応用

大内翔, URBINA Alexander Guzman, 大野肇, 清水輝之, 菊池康紀, 横哲, 成基明, 笘居高明, 阿尻雅文, 福島康裕

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
低温改質におけるプロセス設計と酸素キャリア開発の統合

清水輝之, 大内翔, URBINA Alexander Guzman, 福島康裕, 横哲, 成基明, 笘居高明, 阿尻雅文, 菊池康紀

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
コンビナトリアル水熱合成システムによる迅速な酸化物ナノ粒子ライブラリの構築

迫中あやめ, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
超臨界水熱コンビナトリアル合成によるセリア系酸化物ナノ触媒の探索

迫中あやめ, 横哲, 成基明, 笘居高明, 阿尻雅文, 阿尻雅文

東北大学多元物質科学研究所研究発表会講演予稿集　19th　2019
有機修飾Bi₂O₃ナノ粒子の合成およびX線検出プラスチックシンチレータへの応用

間木ありさ, 加賀美佳, 荒井紗瑛, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 岸本俊二, 春木理恵, 錦戸文彦, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　66th　2019

ISSN： 2436-7613
ニュートリノレス二重β崩壊検出用液体シンチレータに装荷する有機修飾SrMoO₄ナノ粒子合成に及ぼすpHの影響

荒井紗瑛, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　66th　2019

ISSN： 2436-7613
X線検出用プラスチックシンチレータへの応用に向けたBi₂O₃ナノ粒子の有機修飾剤探索

間木ありさ, 加賀美佳, 越水正典, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 藤本裕, 岸本俊二, 春木理恵, 錦戸文彦, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　80th　2019

ISSN： 2758-4704
ニュートリノレス二重β崩壊検出用液体シンチレータに装荷する有機修飾SrMoO₄ナノ粒子の修飾剤の検討

荒井紗瑛, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

セラミックス基礎科学討論会講演要旨集　57th　2019
有機修飾酸化ビスマスナノ粒子を含有したプラスチックシンチレータの蛍光体濃度の最適化

間木ありさ, 加賀美佳, 荒井紗瑛, 横哲, SEONG G., 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 岸本俊二, 春木理恵, 錦戸文彦, 浅井圭介

セラミックス基礎科学討論会講演要旨集　57th　2019
ニュートリノレス二重β崩壊検出を企図した液体シンチレータに装荷する有機修飾SrMoO₄ナノ粒子合成に用いる修飾剤の検討

荒井紗瑛, 横哲, 成基明, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
有機修飾Bi₂O₃ナノ粒子の合成とプラスチックシンチレータへの応用

間木ありさ, 加賀美佳, 荒井紗瑛, 横哲, 成基明, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 岸本俊二, 春木理恵, 錦戸文彦, 浅井圭介

化学工学会年会研究発表講演要旨集(CD-ROM)　84th　2019
超臨界水熱合成によるナノ粒子連続合成とその応用展開—特集ナノ材料・ナノ技術の開発動向

阿尻雅文, 笘居高明, 北條大介, 相田努, 成基明, 横哲

JETI = ジェティ : Japan energy & technology intelligence : エネルギー・化学・プラントの総合技術誌　66　(6)　17-25　2018/06
Publisher: 東京 : 日本出版制作センター
ISSN： 0289-4343
有機低分子を活かした高容量高出力型の水系蓄電デバイス Invited

小林弘明, 笘居高明, 本間格

化学と工業　71　(6)　471-473　2018/06
超臨界水熱合成によるナノ粒子連続合成とその応用展開—Continuous Production of Nanoparticles by Supercritical Hydrothermal Synthesis : Nanoparticles Synthesis, Nanohybrid Materials, and Surface Controlled Nanocatalysts—特集先端材料創成に求められる粉体技術

阿尻雅文, 笘居高明, 北條大介, 相田努, 成基明, 横哲

粉砕 = The micromeritics　(61)　3-13　2018
Publisher: 枚方 : ホソカワミクロン
ISSN： 0429-9051

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超臨界水熱合成法により合成した有機修飾ナノ粒子の分散性

木村統志, 笘居高明, 北條大介, 相田努, 成基明, 中山幸仁, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　83rd　2018
有機修飾ナノ粒子を用いた二元系規則構造の形成

林真弓, 笘居高明, 北條大介, 成基明, 相田努, 横哲, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　83rd　2018
水熱合成法によるNi@BaTiO₃コアシェルナノ粒子の合成

岡部翔, 横哲, 相田努, 成基明, 北條大介, 笘居高明, 阿尻雅文

化学工学会年会研究発表講演要旨集(CD-ROM)　83rd　2018
超臨界混合溶媒による金属酸化物ナノ粒子合成における粒径制御因子の解明

内藤浩輝, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　50th　2018
有機修飾ナノ粒子の溶媒分散性に溶媒特性が与える影響

木村統志, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　50th　2018
有機修飾ナノ粒子を用いた規則構造形成法の検討

林真弓, 笘居高明, 成基明, 横哲, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　50th　2018
Taylor法による有機修飾ナノ粒子の拡散係数の評価

田島直哉, 木村統志, 成基明, 横哲, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　50th　2018
Ni@BaTiO₃コアシェルナノ粒子の水熱合成とその形成過程の観察

岡部翔, 横哲, 成基明, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　50th　2018
コンビナトリアル水熱合成システムの開発

迫中あやめ, 横哲, 成基明, 笘居高明, 阿尻雅文, 阿尻雅文, 阿尻雅文

東北大学多元物質科学研究所研究発表会講演予稿集　18th　2018
酸化ビスマスナノ粒子を含有したプラスチックシンチレータの蛍光体濃度最適化

間木ありさ, 加賀美佳, 荒井紗瑛, 横哲, SEONG G., 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介, 岸本俊二, 春木理恵, 錦戸文彦

日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)　31st　2018
有機修飾Bi₂O₃ナノ粒子を含有したプラスチックシンチレータの蛍光体濃度最適化

間木ありさ, 加賀美佳, 荒井紗瑛, 横哲, SEONG Gimyeong, 笘居高明, 阿尻唯文, 越水正典, 藤本裕, 岸本俊二, 春木理恵, 錦戸文彦, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　79th　2018

ISSN： 2758-4704
ニュートリノレス二重β崩壊検出を企図した有機修飾SrMoO₄ナノ粒子装荷液体シンチレータに用いる修飾剤の検討

荒井紗瑛, 横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　79th　2018

ISSN： 2758-4704
ニュートリノレス二重β崩壊検出を企図したアルカリ土類金属モリブデン酸塩のナノ粒子装荷液体シンチレータの開発

荒井紗瑛, 野口多紀郎, 相田努, 横哲, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

セラミックス基礎科学討論会講演要旨集　56th　2018
ニュートリノレス二重ベータ崩壊検出を企図した液体シンチレータ用有機修飾モリブデン酸ストロンチウムのナノ粒子合成

荒井紗瑛, 野口多紀郎, 相田努, 横哲, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

化学工学会年会研究発表講演要旨集(CD-ROM)　83rd　2018
ニュートリノレス二重β崩壊検出を企図した有機修飾SrMoO₄ナノ粒子装荷液体シンチレータの開発

荒井紗瑛, 野口多紀郎, 相田努, 横哲, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

応用物理学会春季学術講演会講演予稿集(CD-ROM)　65th　2018

ISSN： 2436-7613
先端材料創成に求められる粉体技術超臨界水熱合成によるナノ粒子連続合成とその応用展開

阿尻雅文, 笘居高明, 北條大介, 相田努, SEONG Gimyeong, 横哲

粉砕　(61)　3‐13　2017/12/15

ISSN： 0429-9051
Exfoliated MoS<inf>2</inf>and MoSe<inf>2</inf>Nanosheets by a Supercritical Fluid Process for a Hybrid Mg-Li-Ion Battery

Quang Duc Truong, Murukanahally, Kempaiah Devaraju, Yuta Nakayasu, Naoki Tamura, Yoshikazu Sasaki, Takaaki Tomai, Itaru Honma

ACS Omega　2　(5)　2360-2367　2017/05/31

DOI： 10.1021/acsomega.7b00379 　

eISSN： 2470-1343
立方体酸化セリウムナノ触媒を利用する炭化水素系資源の化学変換

平井榛香, 成基明, 相田努, 北條大介, 高見誠一, 笘居高明, 阿尻雅文, 阿尻雅文, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　49th　2017
立方体酸化セリウムナノ触媒を用いたバイオマスからの化学原料回収

井上亮平, 成基明, 相田努, 北條大介, 横哲, 高見誠一, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　49th　2017
流通式水熱合成法による酸化銅(II)ナノ粒子合成の反応速度解析

田中裕太郎, 横哲, 北條大介, 相田努, 成基明, 青木宣明, 高見誠一, 笘居高明, 阿尻雅文

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　49th　2017
ニュートリノレス二重ベータ崩壊検出を企図した液体シンチレータ用アルカリ土類金属モリブデン酸塩のナノ粒子合成

荒井紗瑛, 野口多紀郎, 相田努, 横哲, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

化学工学会秋季大会研究発表講演要旨集(CD-ROM)　49th　2017
ニュートリノレス二重β崩壊検出を企図したアルカリ土類金属モリブデン酸塩のナノ粒装荷液体シンチレータの開発

荒井紗瑛, 野口多紀郎, 相田努, 横哲, 笘居高明, 阿尻雅文, 越水正典, 藤本裕, 浅井圭介

応用物理学会秋季学術講演会講演予稿集(CD-ROM)　78th　2017

ISSN： 2436-7613
A metal-free supercapacitor devices employing organic redox molecular electrodes

85　(9)　788-792　2016/09
Publisher: 応用物理学会
ISSN： 0369-8009
High-energy-density Metal-free Proton Capacitor Using Organic Compounds

50　(8)　615-619　2015/08
Publisher: 日本セラミックス協会
ISSN： 0009-031X
Hybrid redox capacitor with high energy density derived from quinone-functionalized zeolite templated-carbon

Khanin Nueangnoraj, Takaaki Tomai, Hirotomo Nishihara, Takashi Kyotani, Itaru Honma

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　249　2015/03

ISSN： 0065-7727
High-throughput production of graphene using supercritical fluid for energy applications

Takaaki Tomai, Nobuto Oka, Naoki Tamura, Itaru Honma

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　248　2014/08

ISSN： 0065-7727
超臨界流体を用いた機能性ナノグラフェンの量産化プロセスの開発

笘居高明, 岡伸人, 本間格

ケミカルエンジニヤリング　59　(2)　119-124　2014/02
Publisher: 化学工業社
ISSN： 0387-1037
Supercritical fluid synthesis of LiCoPO<inf>4</inf> nanoparticles and their application to lithium ion battery

Murukanahally Kempaiah Devaraju, Quang Duc Truong, Hiroshi Hyodo, Takaaki Tomai, Itaru Honma

Inorganics　2　(2)　233-247　2014/01/01

DOI： 10.3390/inorganics2020233 　

eISSN： 2304-6740
Direct mass production technique of graphene by supuercritical fluid

Oka Nobuto, Tomai Takaaki, Honma Itaru

TANSO　2014　(261)　19-24　2014
Publisher: THE CARBON SOCIETY OF JAPAN
DOI： 10.7209/tanso.2014.19 　

ISSN： 0371-5345
超臨界流体によるグラフェンの超低コスト合成 Invited

岡伸人, 笘居高明, 本間格

月刊Material Stage [2013年12月号]　2013/12
酸化状態を経由しない高品質グラフェンの量産化技術 : 超臨界流体剥離法

岡伸人, 笘居高明, 本間格

Material stage　13　(9)　62-64　2013/12
Publisher: 技術情報協会
ISSN： 1346-3926
カーボンナノファイバーからのグラフェンの作製とキャパシタへの応用

笘居高明, 三谷諭, 本間格

セラミックデータブック　39　(93)　80-83　2011/12
グラフェンの調整技術とエネルギーデバイスへの応用

三谷諭, 笘居高明, 本間格

月刊ディスプレイ　17　(10)　27-34　2011/10
Publisher: テクノタイムズ社
ISSN： 1341-3961
Disinfection of E. coli in conducting solution by nonthermal microplasma electrolysis

Yukinori Sakiyama, David B. Graves, Takaaki Tomai, Masaru Miyano

IEEE International Conference on Plasma Science　2009

DOI： 10.1109/PLASMA.2009.5227722 　

ISSN： 0730-9244
Two different modes of plasmas in microbubbles formed in saline solution

Takaaki Tomai, Yukinori Sakiyama, David B. Graves

IEEE International Conference on Plasma Science　2009

DOI： 10.1109/PLASMA.2009.5227614 　

ISSN： 0730-9244
超臨界流体プラズマの生成と材料プロセスへの応用

菊池宏和, 笘居高明, 久保裕丈, 寺嶋和夫

Materials Integration　2007/04
マイクロ、ナノ領域でのプラズマの生成法

寺嶋和夫, 笘居高明, 金載浩

静電気学会誌　2005/04
材料デバイスプロセスへの展開

寺嶋和夫, 伊藤剛仁, 笘居高明

OplusE　2004/11
3 Generation of Nanoplasma in Supercritical Fluid(III Recent Progress of Microplasma Researches)

TERASHIMA Kazuo, ITO Tsunehito, Fujiwara Hideyuki, TOMAI Takaaki, KATAHIRA Ken

(20)　17-17　2003
Publisher: プラズマ・核融合学会
Supercritical Hydrothermal Synthesis of Nanoparticles

YOKO AkiraAkira Yoko, Tsutomu Aida, Nobuaki Aoki, Daisuke Hojo, Masanori Koshimizu, Satoshi Ohara, Gimyeong Seong, Seiichi Takami, Takanari Togashi, Takaaki Tomai, Takao Tsukada, Tadafumi Adschiri

Nanoparticle Technology Handbook (Third Edition)

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Books and Other Publications 7

カーボンニュートラルな化学産業の実現に資する超臨界流体を利用したナノ材料合成

笘居高明

アグネ技術センター　2024/01
Supercritical Fluids Process for Plastic Chemical Recycle.

笘居高明, SEONG Gimyeong, 横哲, 後藤元信, 後藤元信, 阿尻雅文

2023
低温で高い酸素貯蔵能を示すナノ粒子-超臨界有機修飾法による新材料の開発

横哲, SEONG Gimyeong, 笘居高明, 阿尻雅文

2021
カーボンナノチューブ・グラフェン分散技術の工業化と機能展開 -溶液・ポリマー・金属・セラミックスへの分散-

笘居高明, 本間格

Ｓ＆Ｔ出版　2014/02
カーボン材料実験技術（製造・合成編）―クラシックカーボンからナノカーボンまで―

岡伸人, 笘居高明, 本間格

国際文献社　2013/11
グラフェンの機能と応用展望 II

笘居高明, 三谷諭, 本間格

シーエムシー出版　2012/12
燃料電池要素技術触媒・電解質膜・ＭＥＡとその低コスト・高信頼・高機能化

笘居高明, 本間

2011/12

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Presentations 53

Understanding Selectivity Control in High-Pressure CO2 Electroreduction International-presentation Invited

Xishuo Zhang, Kazuyuki Iwase, Ryusei Takayanagi, Yusuke Hashimoto, Takaaki Tomai

Supergreen2026　2026/08/05
CO2 AND BIOMASS UTILIZATION VIA HYDROTHERMAL ELECTROLYSIS International-presentation Invited

Takaaki Tomai, R. Takayanagi, Y. Ishikawa, M. R. Revansyah, K. Iwase

WasteEng2026　2026/07/08
Control of Nanoparticle Dispersibility via Molecular-Solution Analogy and Solvent Dynamics International-presentation Invited

Takaaki Tomai, Yuko Arai, Yuki Ishikawa, Chika Takai-Yamashita, Junko Ikeda

The 10th World Congress on Particle Technology（WCPT10）　2026/05/12
‘Molecular-Solute-Like’ Dispersion State of Organically Modified Nanoparticles in Organic Solvent International-presentation Invited

Takaaki Tomai

Japan-Taiwan International Conference on Magnetic Fluids 2026 (JT-ICMF 2026)　2026/03/16
Japanese Process Science Project Toward Design and Control of Nanomaterials International-presentation Invited

Takaaki Tomai

PARTEC International Congress on Particle Technology　2025/09/24
低温駆動ケミカルルーピングプロセスのための酸素キャリアナノ粒子設計 Invited

笘居高明

日本セラミックス協会第 38 回秋季シンポジウム　2025/09/19
新たな熱・炭素利用スキームの構築に資する水熱電気化学反応プロセス Invited

笘居高明

化学工学会第56回秋季大会 SP-1 [特別シンポジウム] ソウハツ × カガクコウガク　2025/09/16
ANALYSIS OF DEGRADATION AND REGENERATION OF NANOCATALYSTS TOWARD SUSTAINABLE CHEMICAL INDUSTRIES International-presentation Invited

Takaaki Tomai

33rd International Materials Research Congress　2025/08/20
Hydrothermal Electrochemical System for Energy-Efficient CO2 Reduction International-presentation Invited

Takaaki Tomai

14th International Symposium on Supercritical Fluids 9th International Solvothermal & Hydrothermal Association Conference Convergence Technology of the Green Future　2025/06/18
Promotion of electrochemical CO2 reduction reaction using hydrothermal conditions (high temperature up to 200°C, high pressure up to 50 MPa) International-presentation

Takaaki Tomai, Kazuyuki Iwase, Ryusei Takayanagi

247th ECS Meeting　2025/05/21
Electrochemistry in subcritical fluid for carbon neutral chemical industry International-presentation Invited

Takaaki Tomai

2025 International Energy Innovation Conference　2025/05/17
超臨界流体を利用した表面修飾ナノ粒子合成とナノ粒子分散液の粘度特性

笘居高明

2024年度磁性流体連合講演会　2024/12/13
Electrochemical Property of Nanoporous Au Electrode in Hydrothermal CO2 Reduction Reaction International-presentation

Takaaki Tomai, Kazuyuki Iwase, Ryusei Takayanagi

SUPERGREEN 2024　2024/11/30
Enhancing CO2 Electrochemical Reduction via Hydrothermal Conditions International-presentation Invited

Takaaki Tomai

2024 International Conference on Supercritical Carbon Dioxide Power Cycle and Comprehensive Energy Systems (ICSPC2024)　2024/09/20
ENERGY-EFFICIENT CO2 REDUCTION SYSTEM BASED ON HYDROTHERMAL ELECTROCHEMICAL REACTION International-presentation Invited

TAKAAKI TOMAI, ALEXANDER GUZMAN, TAKAFUMI SATO, KAZUYUKI IWASE

WasteEng2024　2024/08/21
Sustainable Nanocatalyst Design -Degradation and Regeneration of CeO2 nanoparticles- International-presentation Invited

Takaaki Tomai

The 10th International Symposium on Functional Materials ISFM2024　2024/08/04
高温・高圧水環境の適用による電気化学的CO2還元プロセスの高効率化

笘居高明, 岩瀬和至, 高柳龍生

電気化学会第91回大会　2024/03/16
Hydrothermal electrochemical reduction for carbon recycling Invited

Takaaki Tomai

2023 TwIChE　2023/12/09
Highly Durable CeO2 Oxygen Nanocarrier for Low-temperature Gasification of Waste Plastics

Takaaki Tomai

International Symposium on Feedstock Recycling of Polymeric Materials (ISFR2023)　2023/11/08
Hydrothermal electrolysis for CO2 reduction process with high energy efficiency Invited

Takaaki Tomai, Alexander Guzman Urbina, Kazuyuki Iwase

International Symposium on Supercritical Fluid Technologies 2023　2023/10/16
A Perspective on Improving Energy Efficiency in Electrochemical CO2 Reduction: The Potential of Hydrothermal Systems

Takaaki Tomai, Alexander Guzman-Urbina, Kazuyuki Iwase

8thINTERNATIONAL SOLVOTHERMAL AND HYDROTHERMAL ASSOCIATION CONFERENCE　2023/09/13
Hydrothermal electrochemical reduction for carbon circulation

Takaaki Tomai

19th European Meeting on Supercritical Fluids　2023/05/22
水熱場を利用した電気化学的CO2還元プロセスにおける温度圧力効果

笘居高明

化学工学会第88年会　2023/03/16
Facet control mechanism for nanoparticles in supercritical water Invited

Takaaki Tomai

INTERNATIONAL CONFERENCE ON “ADVANCES IN MATERIALS, CERAMICS AND ENGINEERING SCIENCES” (AMCES-2023)　2023/03/15
溶液プロセスを用いた触媒酸化物ナノ粒子の作製 Invited

笘居高明

令和4年度東北大学電気通信研究所共同プロジェクト研究会「革新的気相プロセスによるナノ材料創成と高機能デバイス応用」　2023/02/21
ナノ粒子分散系は擬似分子系でモデル化・設計できるか Invited

笘居高明

Nanotech2023【特別シンポジウム】ナノ粒子分散系をプロセスサイエンスでひも解き、プロセス・製品設計へ　2023/02/01
化学工学が挑む地域連携カーボンニュートラルとプロセス・材料開発 Invited

笘居高明

無機マテリアル学会第 31 回講習会　2022/12/16
Temperature and Pressure effect on hydrothermal CO2 electrochemical reduction

Takaaki Tomai

The 12th International Conference on Supercritical Fluids, Supergreen 2022　2022/10/25
Process intensification for regeneration of facet-controlled nanocatalyst in supercritical water Invited

Takaaki Tomai

13th International Symposium on. Supercritical Fluids (ISSF2022)　2022/05/18
炭素循環社会構築のための廃熱利用プロセスとそれに資する高温高圧流体・ナノ材料制御技術 Invited

笘居高明

化学工学会エネルギー部会炭素系資源利用分科会第6回炭素系資源の利用に関する勉強会　2021/12/03
Reorientation of Surface Crystalline Structure of Nanoparticle by Supercritical Hydrothermal Treatment for Nanocatalysts Regeneration Invited

Tomai, T, Tang, L, Yoko, A, Omura, Y, Seong, G, Adschiri, T

The 7th International Solvothermal and Hydrothermal Association Conference, ISHA 2021　2021/10/26
水熱電解法によるCO2電気化学還元プロセスの低エネルギー化への挑戦 Invited

笘居高明

化学工学会第52回秋季大会特別シンポジウム「2050年脱炭素社会への道」　2021/09/21
有機分子との相互作用による酸化物ナノ粒子の階層構造制御 Invited

笘居高明, 横哲, 成基明, 阿尻雅文

第69回高分子討論会　2020/09/17
超臨界流体を利用した酸化物ナノ粒子の表面・構造制御 Invited

笘居高明

第81回応用物理学会秋季学術講演会シンポジウム「材料・デバイスを繋ぐ極限環境ナノ界面科学」　2020/09/08
Nanosized oxygen carriers for low-temperature reforming process International-presentation Invited

Takaaki Tomai, Gimyeong Seong, Akira Yoko, Tadafumi Adschiri

International Symposium on Environment, Energy and Social Engineering of ISIJ　2019/10/23
Control of dispersibility for organically-modified nanoparticles International-presentation Invited

Takaaki Tomai, Gimyeong Seong, Akira Yoko, Tadafumi Adschiri

Supergreen 2019, The 11th International Conference on Supercritical Fluids　2019/09/28
Energy-related Nanomaterials Synthesis via Supercritical Fluid Processes International-presentation Invited

Tomai Takaaki, Dinesh Rangappa

International Conference on Emerging Advancement in Science and Technology, and 10th India-Japan Science and Technology Conclave (ICEAST 2019)　2019/09/05
Lithium Ion Battery andSolar Cell MaterialsSynthesis viaSupercritical FluidProcesses International-presentation Invited

Tomai Takaaki, Itaru Honma

ICFD 2018　2018/11/07
Low-temperature reforming process with metal-oxide nanocatalysts synthesized by supercritical hydrothermal method International-presentation Invited

Takaaki Tomai, Gimyeong Seong, Akira Yoko, Tadafumi Adschiri

3rd Japanese-German Workshop on Renewable Energies　2018/10/19
Facile Synthesis of Nanosheets via Supercritical Fluid Route International-presentation Invited

Tomai Takaaki

International Symposium on Advances in Nanomaterials 2018 (ANM-2018)　2018/09/24
Facile Synthesis of Nanosheets via Supercritical Fluid Route International-presentation

Tomai Takaaki

International Symposium on Nanomaterials 2018 (NANOMAT-2018)　2018/09/22
Facile Synthesis of Nanosheets via Supercritical Fluid Route International-presentation Invited

Tomai Takaaki

Advanced Ceramics and Nanomaterials for Sustainable Development (ACeND-2018)　2018/09/19
Efficient Production of h-BN Nanosheets via Supercritical Fluid Exfoliation International-presentation Invited

Takaaki Tomai, Takumi Fugane, Itaru Honma

6th International Solvothermal and Hydrothermal Association Conference　2018/08/08
High-catalytic-activity MoS2 particles synthesis using supercritical route International-presentation Invited

Takaaki Tomai, Yuta Nakayasu, Yoji Yasui, Itaru Honma

Supergreen 2017, the 10th International Conference on Supercritical Fluids　2017/12/01
Fabrication of chalcogenide semiconductor films using supercritical ethanol dissolving low-cost solid chalcogen sources International-presentation Invited

Takaaki Tomai, Yuta Nakayasu, Itaru Honma

Pacifichem 2015　2015/12/15
Graphene deposition by electrochemical methods in sub-critical water

Takaaki Tomai, Yusuke Okamura, Itaru Honma

The 11th International Symposium on Supercritical Fluids　2015/10/11
Metal-free aqueous redox capacitor with high energy density and high power density using a couple of quinonic compounds held in nanoporous carbon International-presentation Invited

Takaaki Tomai, Daiki Komatsu, Khanin Nueangnoraj, Itaru Honma

7th French-Japanese joint workshop On FRONTIER MATERIALS　2014/12/08
HIGH-THROUGHTPUT PRODUCTION OF GRAPHENE USING SUPERCRITICAL FLUID FOR ENERGY APPLICATIONS International-presentation Invited

Takaaki Tomai, Nobuto Oka, Naoki Tamura, Itaru Honma

248th ACS National Meeting & Exposition　2014/08/10
High-throughput Production of Functionalized Graphene: Toward the Application to Energy Devices International-presentation Invited

Takaaki Tomai, Itaru Honma

IEEE NMDC 2013　2013/10/06
Supercritical fluid processingsfor synthesis of energy storage materials International-presentation Invited

Takaaki Tomai, Dinesh Rangappa, Kempaiah Devaraju, Itaru Honma

Eleventh International Symposium on Biomimetic Materials Processing　2011/01/25
Process Science for Dispersion and Aggregation Control of Nanoparticles International-presentation Invited

Takaaki Tomai

9th International Conference on Materials Design and Applications (ICMDA 2026)　2026/04/19
炭素循環に資する水熱電気化学プロセス Invited

笘居高明

水・蒸気性質シンポジウム2024　2024/10/22
Supercritical Fluids Process for Nanomaterials and Its Application Toward Carbon-Neutral Chemical Industry International-presentation Invited

Takaaki Tomai

23th Taiwan Symposium on Development and Application of Supercritical Fluid Technology (TSCFA) annual meeting　2024/10/18

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Research Projects 21

水熱電解法による炭素・熱循環の新スキーム

笘居高明

Offer Organization: 科学技術振興機構

Category: 戦略的な研究開発の推進/創発的研究支援事業

2021 - 2027

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本研究では、高温高圧水の電気化学を新たな学術分野として開拓することで、従来の新電極材料開発による効率改善のパラダイムから脱却し、温度・圧力操作による電気化学的CO2還元プロセスの高効率化を実現します。この学理を礎に、工場の未利用低温廃熱を活用し、再生可能エネルギー（太陽電池電力）で排出CO2を高効率に還元・再資源化する、新たな炭素・熱循環を生み出し、炭素完全循環社会への変革に貢献します。
2025年大船渡市山林火災の総合調査研究

桑名一徳, 廣井悠, 峠嘉哉, 五十嵐康記, 田中賢治, 渡部哲史, 加村晃良, 恩田裕一, 加藤弘亮, 篠原慶規, 丸岡照幸, 高橋純子, 中安祐太, 笘居高明, 小林加代子, 峰尾恵人, 中川由佳, 成瀬友宏, 岩見達也, 樋本圭佑, 鈴木雄太, 鈴木佐夜香, Manzello SamuelL., 杉安和也, 四井早紀, 柴山明寛, 饗庭伸, 荒木笙子, 松山賢, 中村祐二, 鳥飼宏之, 廣田光智, 細川直史, 阿部伸之, 二瓶泰雄, 田中衛, 久田嘉章, 村上正浩, 平山由佳理, 竹林洋史

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 特別研究促進費

Institution: 東京理科大学

2025/04/25 - 2026/03/31
Material/Process design based on dynamic interface control of nanomaterials in hydrothermal condition

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2022/04/01 - 2026/03/31
Material/Process design based on dynamic interface control of nanomaterials in hydrothermal condition

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2022/04/01 - 2026/03/31
Supercritical hydrothermal synthesis of High-entropy nanoceramics

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (S)

Institution: Tohoku University

2021/07/05 - 2026/03/31
Conversion of Woody Biomass by Combination of Hydrothermal Decomposition Reaction and Electrochemical Reduction Reaction

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2023/06/30 - 2025/03/31
Development of innovative chemical recycling system of plastic waste via low-temperature reforming

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2020/07/30 - 2023/03/31
Water Splitting by low-temperature waste heat

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Pioneering)

Institution: Tohoku University

2020/07/30 - 2023/03/31
超臨界水熱合成法による巨大歪ナノ粒子合成機構の解明と新規物性発現

阿尻雅文, 横哲, 笘居高明, 成基明

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(A)

Institution: 東北大学

2021/04/05 - 2022/03/31

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本研究課題は、ナノ粒子の格子ひずみに着目し、その歪がナノ粒子中にどのように生じ、機能に影響するかを評価することを目的としている。ナノサイズ化による歪誘起の原理と、格子歪による機能発現を研究するために、有機無機複合ナノ粒子の合成メカニズムについて検討を行った。今年度は、有機無機複合系における反応メカニズムの解析を目的とし、酸化セリウムの水熱条件下で結晶成長に着目し、速度論解析を行った。300-400 °Cの広い温度範囲で、水熱反応を行った。水および修飾有機分子のカルボン酸の量を変えて、成長速度の解析を行った。その結果、有機修飾分子によるセリウム錯体形成と、そのセリウム錯体の加水分解によって結晶成長が起こっており、無機単独系とは異なるメカニズムで、結晶成長が起こっていることが明らかとなった。水熱場で有機金属錯体を経由した高速な構造形成は、有機修飾金属酸化物ナノ粒子のサイズ精密制御につながる重要な結果である。今後の計画とした錯体の形成を積極的に活用した新規な有機無機ハイブリッド粒子の合成法の開発を行う。これまでにない高精度のサイズ制御を、金属酸化物に対して行うことで、ナノサイズ化による巨大格子ひずみの定量評価と、それによる機能発現についての研究を行う基盤となる。本研究の、発展として、新規に基盤S研究課題「超臨界水熱合成によるハイエントロピー・ナノセラミクス創成」（21H05010）が採択され、本研究課題の新展開が始まった。
Fabrication of fluidic ceramics with supercritical fluid technology toward dynamic thermal management

Adschiri Tadafumi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (S)

Institution: Tohoku University

2016/05/31 - 2021/03/31

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In this research, we have developed a high heat conductive material that can be injected into the complex shape module by giving "fluidity" to the high heat conductive / insulating material. By synthesizing organic-inorganic hybrid materials by the supercritical method and controlling their dispersion and aggregation, we succeeded in creating ultra-high-concentration fluidic ceramics that achieve both fluidity and high thermal conductivity, and acquired knowledge that contributes to its design. This result is important because the amount of heat generated by the device has increased in recent years, and the developed fluidic ceramics contributes to thermal management for achieving the improvement of heat dissipation performance which is indispensable for maintaining the device performance.
Functional nanocarbon and hydrogen co-production systems for zero emission industry

HONMA Itaru

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2016/04/01 - 2020/03/31

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In this research project, we have developed a novel co-production processes of mono-layer graphene and hydrogen via hydrothermal cathodic reduction under a subcritical water. In the developed process, the hydrothermal subcritical water solution was used to enhance the electrochemical reaction kinetics due to an increased electrolytic dissociation rate of the water and prevent the formation of undesirable amorphous carbon. The hydrothermal electrochemical reaction enabled low-temperature graphene growth on a Pt cathode surface with simultaneous hydrogen production. The conversion of hydrocarbons/basic chemicals to the high-value-added nanocarbons, including graphene, carbon nanotubes, and fullerenes, with valuable hydrogen has high potential economic/environmental benefits.
Formation of layer-by-layer structures by multi-nanoparticles and their concerted functions based on nanodomains

Adschiri Tadafumi, Tomai Takaaki, Yoko Akira, Seong Gimyeong

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2017/06/30 - 2019/03/31

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The fabrication of binary nanoparticles system is anticipated to induce the improvement of physical/chemical properties and the emergence of new functions. In this study, we developed the approach to fabricate the binary nanoparticles system and confirmed the synergetic effect by controlling nano-domain structure. As a result, ordering of binary nanoparticles by the formation of covalent bonds between the organic compounds modifying nanoparticles successfully formed well-mixed metal-metal oxide nanoparticles composite. The fabricated 3D-structured Au-CeO2 composite exhibited synergetic effect in methane reforming process. The oxidative ability was enhanced because of improved reaction kinetics on the nanoparticles surface.
Controlled synthesis of chalcogenide nanosheets and its electrochemical application

Tomai Takaaki, YASUI Yoji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2015/04/01 - 2017/03/31

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In this study, we developed scalable synthesis processing of well-controlled chalcogenide nanosheets catalyst by using supercritical fluid. As a result, we achieved fast synthesis of agglomerates of Mo(S,Se)2 nanosheets with edge-exposed structure by the assistance of reductive agents in supercritical ethanol. The layer-number-controlled and S/Se-ratio-controlled Mo(S,Se)2 catalyst exhibited excellent performance for hydrogen evolution reaction.
Novel design concept of organic battery electrodes based on crystallography

Honma Itaru, KITADA Yuta, SAITO Hayate, HANZAWA Kazuki

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2015/04/01 - 2017/03/31

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Organic materials has attracted much attention as the electrodes in low-cost, environmentally-friendly and high-energy-density batteries. In this study, we analyzed the crystal structural change in organic electrode, and revealed that the crystal growth of organic compound during charge-discharge cycling can become a dominant mechanism of battery degradation. To avoid the organic crystal growth, the control of interface between electrode and electrolyte was effective. Moreover, by applying the organic active materials to electrochemical flow capacitor, the capacitance enhancement was achieved.
Functional nanographene synthesis from CO2 using supercritical fluid plasma

Tomai Takaaki, TAMURA Naoki, OKAMURA Yusuke, ISHIGURO Shunichi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Young Scientists (A)

Institution: Tohoku University

2013/04/01 - 2017/03/31

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In this study, toward the recycling carbon dioxide, we investigated the nanocarbon production process from CO2 using supercritical fluid and plasma, and developed the scalable structural control and separation processes for graphene. Through the studies, we achieved 1. graphitic nanocarbon production from CO2 using supercritical fluid and plasma electrolysis, 2. efficient production of zigzag-edge-introduced graphene with promising electrochemical performance, and 3. scalable structural separation of graphene by gel chromatography.
Co-production system of hydrogen and carbon nanotube using supercritical fluid plasma reaction

Honma Itaru, OKAMURA Yusuke, ISHIGURO Shunichi, KATAHIRA Shusuke

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2011/04/01 - 2016/03/31

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To develop co-production system of hydrogen and valuable nanocarbon at low temperature, we studied the electrochemical synthesis of nanocarbon in sub-critical fluids. As a result, by hydrothermal cathodic reduction of acetic acid, mono-layer graphene and hydrogen co-production was achieved. This novel reaction system also facilitated the synthesis of more valuable nitrogen-doped graphene, and will contribute to the sustainable society as the innovative energy technology.
Realization of high-efficiency 3-D structured solar cells with compound semiconductor via supercritical fluid conformal deposition

TOMAI Takaaki, MOMOSE Takeshi, NAKAYASU Yuta, WATANABE Shinji, YASUI Yoji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2013/04/01 - 2015/03/31

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At first, we facilitated the conformal deposition of Cu, In in nanoporous film consisted of TiO2 particles with the diameter of 25 nm via supercritical fluid deposition method. Secondary, we developed novel chalcogenization process using safe, low-cost and solid chalcogen sources instead of toxic gaseous chalcogen sources using supercritical ethanol as a reaction medium having high solubility and reduction power. By using these supercritical fluid processings, we succeeded in the conformal deposition of CuInS2 in nanoporous TiO2 film, and realized a promising 3D solar-cell structure with CuInS2.
Magnetic separation of minor metal by using nanographene magnetic fluid

HONMA Itaru, TOMAI Takaaki

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2012/04/01 - 2014/03/31

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Zigzag-edge nanographene can be a promising magnetic material, which contributes to the magnetic separation and collection of minor metals. In this study, we developed a novel scalable production method of zigzag-edge-introduced nanographene by combination between anisotropic etching and supercritical fluid exfoliation. We conducted anisotropic etching of graphite substrate/powder with catalytic nanoparticles in supercritical water. Anisotropic etching made a lot of trenches consisted of zigzag edges on graphite surface. Because of the exfoliation effect of supercritical fluid, graphene was isolated from the graphite simultaneously with the anisotropic etching. Finally, the multilayer graphene with zigzag edge was exfoliated from the anisotropically etched graphite surface.
超臨界流体成膜・変換法を用いた3次元接合型CIS太陽電池の開発

笘居高明

Offer Organization: 科学技術振興機構

Category: 産学が連携した研究開発成果の展開/復興促進プログラム/A-STEP/探索タイプ

2012 - 2013

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本研究開発では、従来溶液法では困難な、TiO2多孔質薄膜中への化合物半導体の完全埋め込みが実現された3次元接合型太陽電池の作製を目的とした。微細構造中への金属薄膜の埋め込み性に優れる超臨界流体成膜法と、超臨界流体コンバージョン法を組み合わせることで、3次元ナノ構造へのCuInS2化合物半導体埋め込み成膜を可能とし、最終成果として、3次元接合型CIS太陽電池構造の作製に成功した。今後、変換効率の測定・向上を進め、発電コストの観点から、本シーズの技術の技術移転を検討する。
Development of supercritical plasma electrolysis processing

TOMAI Takaaki

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Young Scientists (B)

Institution: Tohoku University

2011 - 2012

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Supercritical fluid plasma facilitates material syntheses beyond equilibrium condition. In this study, we developed novel generation method for supercritical fluid plasma. We succeeded in the plasma generations in conductive supercritical CO2 + methanol system with fluoride salt and supercritical CO2 + water binary system. Especially, in the latter case, we synthesis carbonaceous material from CO2 dissolved in water as a carbon source.
超臨界流体プラズマ生成・診断、および、それを用いた環境調和型材料プロセスの創製

笘居高明

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 特別研究員奨励費

Institution: 東京大学

2007 - 2008

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本研究は、「超臨界流体プラズマ生成・診断・および、それを用いた環境調和型材料プロセスの創製」を目的とする。本年度の研究においては、この新規プラズマ状態、さらにはプラズマプロセスの更なる理解・制御のために"時間的・空間的な疎密混合状態のプラズマ反応場"のモデル反応場として、超臨界流体の密度揺らぎと比較し、時間的・空間的にマクロな系で揺らぎが生じている、バブルを含む液中におけるプラズマ反応場の生成・解析を行い、本プラズマ反応場制御に関する新たな知見を獲得した。具体的には、生理食塩水中において100μm程度の微小電極にAC電圧(10-100kHz)を印加し、主としてジュール加熱による、ガス注入無しでのバブル生成を行い、バブル中でのプラズマを形成した。印加電圧波形の制御のみで、電極上に10分以上安定に存在させた単一バブルと、電極近傍で生成されたバブルクラウドとの2つのバブルモードにおける安定なプラズマ形成、制御に成功している。さらに電気的特性、プラズマ中の励起種等を診断すると共に、計算機モデリングにより、バブルクラウド形成時に見られるバブル流が、主に誘電泳動力により駆動されていることを示唆した。誘電泳動力は、電界勾配と周囲媒質との誘電率の差により生じ、超臨界流体プラズマ反応場においても、疎密による誘電率の分子レベルでの空間的不均一性により、この力が働くことが考えられることから、誘電泳動力が、超臨界状態も含めた、疎密混合状態のプラズマ反応場の効率的輸送、さらにはプラズマ処理の空間的制御に効果的であることが期待される。また生体環境調和型プロセスとして、バブルクラウドモードでの液中プラズマ殺菌を行い、180sで99.5%の殺菌を実現した。本手法は、微小プラズマを用いることによる利便性と共に、高速処理能を有しており、次世代殺菌技術に大きく貢献しうるものである。

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