TOHOKU UNIVERSITY Researchers - Tadahiro Fujitani

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Tadahiro Fujitani

Section

Graduate School of Engineering

Job title

Specially Appointed Professor(Research)

researchmap

https://researchmap.jp/read1960824

Research Areas 1

Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Catalytic processes and resource chemistry /

Awards 3

第34回日本ゴム協会賞

2022/05　一般社団法人日本ゴム協会　サステナブル資源を用いたゴム材料の研究開発
2021年度触媒学会賞学術部門

2022/03　一般社団法人触媒学会　活性発現機構の解析に基づく金属触媒の開発
2018年度石油学会賞

2019/05　公益社団法人石油学会　二酸化炭素水素化によるメタノール合成用銅亜鉛系触媒の活性点構造の解明と高性能化

Papers 227

Direct synthesis of methyl acetate and acetic acid from syngas over tandem catalysts composed of a Cu-based catalyst and a Cu-exchanged mordenite zeolite

Tadahiro Fujitani

CATALYSIS SCIENCE & TECHNOLOGY　2026

DOI： 10.1039/D6CY00105J 　
High-Throughput Optimization of a High-Pressure Catalytic Reaction

Yusuke Tanabe, Hiroki Sugisawa, Tomohisa Miyazawa, Kazuhiro Hotta, Kazuya Shiratori, Tadahiro Fujitani

Journal of Chemical Information and Modeling　65　(5)　2245-2250　2025/02/20
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.jcim.4c02273 　

ISSN： 1549-9596

eISSN： 1549-960X
Direct conversion of ethene to isobutene using a combination of Ni-loaded amorphous silica-alumina and ferrierite zeolite catalysts

Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　2025

DOI： 10.1016/J.APCATA.2025.120396 　
Supported Noble Metal Catalysts and Adsorbents with Soft Lewis Acid Functions

Haruno Murayama, Qi‐An Huang, Eiji Yamamoto, Makoto Tokunaga, Tamao Ishida, Mitsutaka Okumura, Tetsuo Honma, Tadahiro Fujitani, Atsuko Isogai

The Chemical Record　2023/07/07
Publisher: Wiley
DOI： 10.1002/tcr.202300148 　

ISSN： 1527-8999

eISSN： 1528-0691

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Abstract Heterogeneous noble metal catalysts exhibit various functions. Although their redox functions have been extensively studied, we focused on their soft Lewis acid functions. Supported Au, Pt, and Pd catalysts electrophilically attack the π‐electrons of soft bases such as alkynes, alkenes, and aromatic compounds to perform addition and substitution reactions. Hydroamination, intramolecular cyclization of alkynyl carboxylic acids, isomerization of allylic esters, vinyl exchange reactions, Wacker oxidation, and oxidative homocoupling of aromatics are introduced based on a discussion of the active species and reaction mechanisms. Furthermore, the adsorption of sulfur compounds, which are soft bases, onto the supported AuNPs is discussed. The adsorption and removal of 1,3‐dimethyltrisulfane (DMTS), which is the compound responsible for the stale odor of “hine‐ka” in alcoholic beverages, particularly Japanese sake, is described.
Effects of the Pt Shell Thickness on the Oxygen Reduction Reaction on a Well-Defined Pd@Pt Core-Shell Model Surface

Yuta Hashiguchi, Isao Nakamura, Tetsuo Honma, Toshiyuki Matsushita, Haruno Murayama, Makoto Tokunaga, Yoong Kee Choe, Tadahiro Fujitani

ChemPhysChem　24　(1)　2023/01/03

DOI： 10.1002/cphc.202200389 　

ISSN： 1439-4235

eISSN： 1439-7641
Solid acid-catalyzed one-step synthesis of oleacein from oleuropein

Tadahiro Fujitani

SCIENTIFIC REPORTS　2023

DOI： 10.1038/S41598-023-35423-X 　
Highly active MgO catalysts for hydrogenation of levulinic acid to γ-valerolactone using formic acid as the hydrogen source

Tadahiro Fujitani

FRONTIERS IN ENERGY RESEARCH　2023

DOI： 10.3389/FENRG.2023.1133514 　
Impacts of Ni-Loading Method on the Structure and the Catalytic Activity of NiO/SiO₂-Al₂O₃ for Ethylene Oligomerization

Tadahiro Fujitani

CATALYSTS　2023

DOI： 10.3390/CATAL13091303 　
Controlled Growth of Platinum Nanoparticles on Amorphous Silica from Grafted Pt–Disilicate Complexes

Toshiki Nishitoba, Kazuhiro Matsumoto, Yusuke Ishizaka, Natsumi Arai, Katsuhiko Takeuchi, Norihisa Fukaya, Tadahiro Fujitani, Akira Endo, Hiroyuki Yasuda, Kazuhiko Sato, Jun-Chul Choi

ACS Omega　7　(50)　47120-47128　2022/12/20
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsomega.2c06262 　

ISSN： 2470-1343

eISSN： 2470-1343
Theoretical study of the side reactions of ethanol-to-butadiene conversion on MgO catalyst: formation of diethyl ether, ethyl acetal, 1,3-butanediol, methyl ethyl ketone, n-butanol, butanal, and acetone

Megumi Kayanuma, Yu Shinke, Tomohisa Miyazawa, Tadahiro Fujitani, Yoong Kee Choe

Theoretical Chemistry Accounts　141　(11)　2022/11

DOI： 10.1007/s00214-022-02927-0 　

ISSN： 1432-881X

eISSN： 1432-2234
Ethylene oligomerization over NiO_x/SiO₂-Al₂O₃ catalysts prepared by a coprecipitation method

Tadahiro Fujitani

MOLECULAR CATALYSIS　2022/08

DOI： 10.1016/J.MCAT.2022.112478 　
Hydrogenation of Formate Species Using Atomic Hydrogen on a Cu(111) Model Catalyst

Kotaro Takeyasu, Yasutaka Sawaki, Takumi Imabayashi, Septia Eka Marsha Putra, Harry Handoko Halim, Jiamei Quan, Yuji Hamamoto, Ikutaro Hamada, Yoshitada Morikawa, Takahiro Kondo, Tadahiro Fujitani, Junji Nakamura

Journal of the American Chemical Society　144　(27)　12158-12166　2022/07/13
Publisher: American Chemical Society (ACS)
DOI： 10.1021/jacs.2c02797 　

ISSN： 0002-7863

eISSN： 1520-5126
Preparation of NiOx/SiO2-Al2O3 catalysts by a homogenous precipitation method and their catalytic activity for ethylene oligomerization

Katsuya Shimura, Shigehiro Yoshida, Hiroshi Oikawa, Tadahiro Fujitani

MICROPOROUS AND MESOPOROUS MATERIALS　338　2022/06

DOI： 10.1016/j.micromeso.2022.111955 　

ISSN： 1387-1811

eISSN： 1873-3093
Evaluation of Durability Performance of a Ru/MgO Catalyst forAmmonia Decomposition at an on-Site Hydrogen Fueling Station br

Kiyoshi Yamazaki, Mitsuru Matsumoto, Hidehito Kubo, Tadahiro Fujitani, Marie Ishikawa, Akinori Sato

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH　61　(17)　5778-5785　2022/05

DOI： 10.1021/acs.iecr.2c00565 　

ISSN： 0888-5885
Selective monoallylation of anilines to N-allyl anilines using reusable zirconium dioxide supported tungsten oxide solid catalyst

Yoshihiro Kon, Shota Tsurumi, Shunsuke Yamada, Toshiyuki Yokoi, Tadahiro Fujitani

RSC ADVANCES　12　(19)　11877-11884　2022/04

DOI： 10.1039/d2ra00198e 　

eISSN： 2046-2069
Carbonylation of o-phenylenediamines with CO2 to 2-benzimidazolones catalyzed by alumina

Hideaki Matsuo, Jun-Chul Choi, Tadahiro Fujitani, Ken-ichi Fujita

TETRAHEDRON LETTERS　96　2022/04

DOI： 10.1016/j.tetlet.2022.153772 　

ISSN： 0040-4039

eISSN： 1873-3581
Direct synthesis of triazines from alcohols and amidines using supported Pt nanoparticle catalysts via the acceptorless dehydrogenative methodology

Sharmin Sultana Poly, Yuta Hashiguchi, Isao Nakamura, Tadahiro Fujitani, S. M. A. Hakim Siddiki

CATALYSIS SCIENCE & TECHNOLOGY　2022/04

DOI： 10.1039/d2cy00426g 　

ISSN： 2044-4753

eISSN： 2044-4761
Development and validation of rare earth modified Fe-BEA SCR catalyst for mitigation of NOx from NH₃ gas turbine

Tadahiro Fujitani

CLEANER MATERIALS　2022

DOI： 10.1016/J.CLEMA.2022.100096 　
Preferential Formation of Squalene Monoepoxides via Microflow Reaction of Squalene and m-Chloroperbenzoic Acid

Tadahiro Fujitani

CHEMISTRY LETTERS　2022

DOI： 10.1246/CL.220188 　
Critical role of Cs doping in the structure and NH₃ decomposition performance of Ru/MgO catalysts

Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　2022

DOI： 10.1016/J.APCATA.2022.118806 　
High-throughput development of highly active catalyst system to convert bioethanol to 1,3-butadiene

Yu Shinke, Tomohisa Miyazawa, Misao Hiza, Isao Nakamura, Tadahiro Fujitani

REACTION CHEMISTRY & ENGINEERING　6　(8)　1381-1385　2021/08

DOI： 10.1039/d1re00232e 　

ISSN： 2058-9883
Continuous-flow synthesis of Pd@Pt core-shell nanoparticles

Yuta Hashiguchi, Fumihiro Watanabe, Tetsuo Honma, Isao Nakamura, Sharmin Sultana Poly, Tatsuya Kawaguchi, Tetsurou Tsuji, Haruno Murayama, Makoto Tokunaga, Tadahiro Fujitani

Colloids and Surfaces A: Physicochemical and Engineering Aspects　620　2021/07/05

DOI： 10.1016/j.colsurfa.2021.126607 　

ISSN： 0927-7757

eISSN： 1873-4359
Carboxylative Cyclization of a Propargylic Amine with CO2 Catalyzed by a Silica-Coated Magnetite

Hideaki Matsuo, Jun-Chul Choi, Tadahiro Fujitani, Ken-ichi Fujita

CHEMICAL & PHARMACEUTICAL BULLETIN　69　(7)　698-701　2021/07

DOI： 10.1248/cpb.c21-00200 　

ISSN： 0009-2363
Flow reactor approach for the facile and continuous synthesis of efficient Pd@Pt core-shell nanoparticles for acceptorless dehydrogenative synthesis of pyrimidines from alcohols and amidines

Sharmin Sultana Poly, Yuta Hashiguchi, Asima Sultana, Isao Nakamura, Ken-ichi Shimizu, Shunsaku Yasumura, Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　619　2021/06

DOI： 10.1016/j.apcata.2021.118158 　

ISSN： 0926-860X

eISSN： 1873-3875
Effects of rhodium catalyst support and particle size on dry reforming of methane at moderate temperatures

Katsuya Shimura, Tadahiro Fujitani

MOLECULAR CATALYSIS　509　2021/06

DOI： 10.1016/j.mcat.2021.111623 　

ISSN： 2468-8231
Mechanistic investigation on ethanol-to-butadiene conversion reaction over metal oxide clusters

Valeria Butera, Yusuke Tanabe, Yu Shinke, Tomohisa Miyazawa, Tadahiro Fujitani, Megumi Kayanuma, Yoong-Kee Choe

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY　121　(5)　2021/03

DOI： 10.1002/qua.26494 　

ISSN： 0020-7608

eISSN： 1097-461X
Pt-Catalyzed selective oxidation of alcohols to aldehydes with hydrogen peroxide using continuous flow reactors. International-journal

Yoshihiro Kon, Takuya Nakashima, Akira Yada, Tadahiro Fujitani, Shun-Ya Onozawa, Shū Kobayashi, Kazuhiko Sato

Organic & biomolecular chemistry　19　(5)　1115-1121　2021/02/11

DOI： 10.1039/d0ob02213f 　

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The oxidation of alcohols to aldehydes is a powerful reaction pathway for obtaining valuable fine chemicals used in pharmaceuticals and biologically active compounds. Although many oxidants can oxidize alcohols, only a few hydrogen peroxide oxidations can be employed to continuously synthesize aldehydes in high yields using a liquid-liquid two-phase flow reactor, despite the possibility of the application toward a safe and rapid multi-step synthesis. We herein report the continuous flow synthesis of (E)-cinnamaldehyde from (E)-cinnamyl alcohol in 95%-98% yields with 99% selectivity for over 5 days by the selective oxidation of hydrogen peroxide using a catalyst column in which Pt is dispersed in SiO2. The active species for the developed selective oxidation is found to be zero-valent Pt(0) from the X-ray photoelectron spectroscopy measurements of the Pt surface before and after the oxidation. Using Pt black diluted with SiO2 as a catalyst to retain the Pt(0) species with the optimal substrate and H2O2 introduction rate not only enhances the catalytic activity but also maintains the activity during the flow reaction. Optimizing the contact time of the substrate with Pt and H2O2 using a flow reactor is important to proceed with the selective oxidation to prevent the catalytic H2O2 decomposition.
Theoretical study of the side reactions of the catalytic conversion of ethanol to butadiene on metal oxide catalysts

Megumi Kayanuma, Yu Shinke, Tomohisa Miyazawa, Tadahiro Fujitani, Yoong-Kee Choe

CATALYSIS COMMUNICATIONS　149　2021/01

DOI： 10.1016/j.catcom.2020.106239 　

ISSN： 1566-7367

eISSN： 1873-3905
Ethanol–ethylene conversion mechanism on hydrogen boride sheets probed by in situ infrared absorption spectroscopy

Asahi Fujino, Shin-ichi Ito, Taiga Goto, Ryota Ishibiki, Ryota Osuga, Junko N. Kondo, Tadahiro Fujitani, Junji Nakamura, Hideo Hosono, Takahiro Kondo

Physical Chemistry Chemical Physics　2021
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d0cp03079a 　

ISSN： 1463-9076

eISSN： 1463-9084

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<p>The catalytic ethanol dehydration process on hydrogen boride (HB) sheets are found to involve the hydrogen atoms of the HB sheets.</p>
Selective N-formylation/N-methylation of amines and N-formylation of amides and carbamates with carbon dioxide and hydrosilanes: promotion of the basic counter anions of the zinc catalyst

Qiao Zhang, Xiao-Tao Lin, Norihisa Fukaya, Tadahiro Fujitani, Kazuhiko Sato, Jun-Chul Choi

GREEN CHEMISTRY　22　(23)　8414-8422　2020/12

DOI： 10.1039/d0gc02890h 　

ISSN： 1463-9262

eISSN： 1463-9270
Fundamental roles of ZnO and ZrO2in the conversion of ethanol to 1,3-butadiene over ZnO-ZrO2/SiO2

Tomohisa Miyazawa, Yusuke Tanabe, Isao Nakamura, Yu Shinke, Misao Hiza, Yoong-Kee Choe, Tadahiro Fujitani

Catalysis Science and Technology　10　(22)　7531-7541　2020/11/21
Publisher: Royal Society of Chemistry
DOI： 10.1039/d0cy01453b 　

ISSN： 2044-4761 2044-4753
Kinetic-model-based design of industrial reactor for catalytic hydrogen production via ammonia decomposition

Atsushi Takahashi, Tadahiro Fujitani

Chemical Engineering Research and Design　2020/11
Publisher: Elsevier BV
DOI： 10.1016/j.cherd.2020.11.004 　

ISSN： 0263-8762
Silica-catalyzed carboxylative cyclization of propargylic amines with CO2

Hideaki Matsuo, Jun-Chul Choi, Tadahiro Fujitani, Ken-ichi Fujita

Tetrahedron Letters　61　(48)　152557-152557　2020/11
Publisher: Elsevier BV
DOI： 10.1016/j.tetlet.2020.152557 　

ISSN： 0040-4039
Calcium carbide as a dehydrating agent for the synthesis of carbamates, glycerol carbonate, and cyclic carbonates from carbon dioxide

Qiao Zhang, Hao-Yu Yuan, Xiao-Tao Lin, Norihisa Fukaya, Tadahiro Fujitani, Kazuhiko Sato, Jun-Chul Choi

GREEN CHEMISTRY　22　(13)　4231-4239　2020/07

DOI： 10.1039/d0gc01402h 　

ISSN： 1463-9262

eISSN： 1463-9270
Effect of catalyst preparation method on ammonia decomposition reaction over Ru/MgO catalyst Peer-reviewed

Tadahiro Fujitani, Isao Nakamura, Yuta Hashiguchi, Shoichi Kanazawa, Atsushi Takahashi

Bulletin of the Chemical Society of Japan　93　(10)　1186-1192　2020/06/06
Publisher: The Chemical Society of Japan
DOI： 10.1246/bcsj.20200103 　

ISSN： 0009-2673

eISSN： 1348-0634
Cracking of squalene into isoprene as chemical utilization of algae oil

Kazuya Kimura, Kazuma Shiraishi, Takahiro Kondo, Junji Nakamura, Tadahiro Fujitani

GREEN CHEMISTRY　22　(10)　3083-3087　2020/05

DOI： 10.1039/d0gc00268b 　

ISSN： 1463-9262

eISSN： 1463-9270
Chemoselective Epoxidation of Allyloxybenzene by Hydrogen Peroxide Over MFI-Type Titanosilicate Peer-reviewed

Yoshihiro Kon, Takuya Nakashima, Dachao Hong, Xinyi Ji, Ryota Osuga, Satoru Ito, Tadahiro Fujitani, Kazuhiko Sato, Toshiyuki Yokoi

European Journal of Organic Chemistry　2020　(15)　2260-2263　2020/04/23
Publisher: Wiley
DOI： 10.1002/ejoc.202000249 　
Epoxidation of microalgal biomass-derived squalene with hydrogen peroxide using solid heterogeneous tungsten-based catalyst

Hidehisa Kawashima, Yuki Okuda, Masashi Kijima, Tadahiro Fujitani, Jun-Chul Choi

TETRAHEDRON　76　(16)　2020/04

DOI： 10.1016/j.tet.2020.131109 　

ISSN： 0040-4020
H2O Dissociation at the Perimeter Interface between Gold Nanoparticles and TiO2 Is Crucial for Oxidation of CO Peer-reviewed

Tadahiro Fujitani, Isao Nakamura, Atsushi Takahashi

ACS Catalysis　10　(4)　2517-2521　2020/02/04

DOI： 10.1021/acscatal.9b05195 　

ISSN： 2155-5435
Enhancement of the Catalytic Performance and Active Site Clarification of Cu/ZnO Based Catalysts for Methanol Synthesis by CO2 Hydrogenation

Tadahiro Fujitani

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE　63　(2)　43-51　2020

DOI： 10.1627/jpi.63.43 　

ISSN： 1346-8804

eISSN： 1349-273X
Carbon Dioxide Hydrosilylation to Methane Catalyzed by Zinc and Other First-Row Transition Metal Salts

Qiao Zhang, Norihisa Fukaya, Tadahiro Fujitani, Jun-Chul Choi

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　92　(12)　1945-1949　2019/12

DOI： 10.1246/bcsj.20190203 　

ISSN： 0009-2673

eISSN： 1348-0634
Carboxylative Cyclization of Propargylic Amines with Carbon Dioxide- Catalyzed by Poly(amidoamine)-Dendrimer-Encapsulated Gold Nanoparticles

Hideaki Matsuo, Akira Fujii, Jun-Chul Choi, Tadahiro Fujitani, Ken-ichi Fujita

SYNLETT　30　(16)　1914-1918　2019/10

DOI： 10.1055/s-0039-1690162 　

ISSN： 0936-5214

eISSN： 1437-2096
Hydrogenated Borophene Shows Catalytic Activity as Solid Acid

Asahi Fujino, Shin-ichi Ito, Taiga Goto, Ryota Ishibiki, Junko N. Kondo, Tadahiro Fujitani, Junji Nakamura, Hideo Hosono, Takahiro Kondo

ACS OMEGA　4　(9)　14100-14104　2019/08

DOI： 10.1021/acsomega.9b02020 　

ISSN： 2470-1343
Direct transformation of terminal alkenes with H<inf>2</inf>O into primary alcohols over metal oxide-supported Pd catalysts

Zhenzhong Zhang, Tetsuya Mamba, Eiji Yamamoto, Haruno Murayama, Tamao Ishida, Tetsuo Honma, Tadahiro Fujitani, Makoto Tokunaga

Applied Catalysis B: Environmental　246　100-110　2019/06/05

DOI： 10.1016/j.apcatb.2019.01.031 　

ISSN： 0926-3373
Effects of promoters on the performance of a VOx/SiO2 catalyst for the oxidation of methane to formaldehyde

Katsuya Shimura, Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　577　44-51　2019/05

DOI： 10.1016/j.apcata.2019.03.014 　

ISSN： 0926-860X

eISSN： 1873-3875
Dehydrative Allylation of Amine with Allyl Alcohol by Titanium Oxide Supported Molybdenum Oxide Catalyst Peer-reviewed

Yoshihiro Kon, Takuya Nakashima, Tadahiro Fujitani, Toru Murayama, Wataru Ueda

Synlett　30　(03)　287-292　2019/02/11
Publisher: Georg Thieme Verlag {KG}
DOI： 10.1055/s-0037-1612010 　
Adsorption and thermal reactivity of dimethyl trisulfide on a Au(111) single-crystal surface

Isao Nakamura, Haruno Murayama, Makoto Tokunaga, Mitsutaka Okumura, Tadahiro Fujitani

Surface Science　677　186-192　2018/11/01

DOI： 10.1016/j.susc.2018.07.012 　

ISSN： 0039-6028
Phosgene-Free Synthesis of Carbamates Using CO2 and Titanium Alkoxides

Hao-Yu Yuan, Qiao Zhang, Norihisa Fukaya, Xiao-Tao Lin, Tadahiro Fujitani, Jun-Chul Choi

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　91　(10)　1481-1486　2018/10

DOI： 10.1246/bcsj.20180127 　

ISSN： 0009-2673

eISSN： 1348-0634
Reverse water gas shift reaction using supported ionic liquid phase catalysts

Tomohiro Yasuda, Eriko Uchiage, Tadahiro Fujitani, Ken-ichi Tominaga, Mayumi Nishida

APPLIED CATALYSIS B-ENVIRONMENTAL　232　299-305　2018/09

DOI： 10.1016/j.apcatb.2018.03.057 　

ISSN： 0926-3373

eISSN： 1873-3883
Efficient synthesis of 2-oxazolidinones and quinazoline-2,4(1H,3H)-diones from CO2 catalyzed by tetrabutylammonium fluoride

Akira Fujii, Hideaki Matsuo, Jun-Chul Choi, Tadahiro Fujitani, Ken-ichi Fujita

TETRAHEDRON　74　(24)　2914-2920　2018/06

DOI： 10.1016/j.tet.2018.04.059 　

ISSN： 0040-4020
Vapor Phase Catalytic Transfer Hydrogenation (CTH) of Levulinic Acid to gamma-Valerolactone Over Copper Supported Catalysts Using Formic Acid as Hydrogen Source

Samadhan Lomate, Asima Sultana, Tadahiro Fujitani

CATALYSIS LETTERS　148　(1)　348-358　2018/01

DOI： 10.1007/s10562-017-2241-z 　

ISSN： 1011-372X

eISSN： 1572-879X
Conversion of Bioethanol to Propylene over ZSM-5 Zeolites Peer-reviewed

Takahashi Atsushi, Fujitani Tadahiro

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE　61　(1)　20-27　2018/01

DOI： 10.1627/jpi.61.20 　

ISSN： 1346-8804
Versatile etherification of alcohols with allyl alcohol by a titanium oxide-supported molybdenum oxide catalyst: Gradual generation from titanium oxide and molybdenum oxide

Yoshihiro Kon, Tadahiro Fujitani, Takuya Nakashima, Toru Murayama, Toru Murayama, Wataru Ueda, Wataru Ueda

Catalysis Science and Technology　8　(18)　4618-4625　2018/01/01

DOI： 10.1039/c8cy00613j 　

ISSN： 2044-4753

eISSN： 2044-4761
Chemisorption-Induced Activation of MgCl2 Film as Realistic Route for Heterogeneous Ziegler-Natta Surfaces under Ultrahigh Vacuum

Toshiaki Taniike, Patchanee Chammingkwan, Vu Q. Thang, Keisuke Goto, Tadahiro Fujitani, Minoru Terano

JOURNAL OF PHYSICAL CHEMISTRY C　121　(43)　24085-24092　2017/11

DOI： 10.1021/acs.jpcc.7b08242 　

ISSN： 1932-7447
Comment on "Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts"

Junji Nakamura, Tadahiro Fujitani, Sebastian Kuld, Stig Helveg, Ib Chorkendorff, Jens Sehested

SCIENCE　357　(6354)　2017/09

DOI： 10.1126/science.aan8074 　

ISSN： 0036-8075

eISSN： 1095-9203
Effect of SiO2 support properties on the performance of Cu-SiO2 catalysts for the hydrogenation of levulinic acid to gamma valerolactone using formic acid as a hydrogen source

Samadhan Lomate, Asima Sultana, Tadahiro Fujitani

CATALYSIS SCIENCE & TECHNOLOGY　7　(14)　3073-3083　2017/07

DOI： 10.1039/c7cy00902j 　

ISSN： 2044-4753

eISSN： 2044-4761
Catalytic transfer hydrogenation of biomass-derived levulinic acid and its esters to gamma-valerolactone over ZrO2 catalyst supported on SBA-15 silica

Yasutaka Kuwahara, Wako Kaburagi, Yohsuke Osada, Tadahiro Fujitani, Hiromi Yamashita

CATALYSIS TODAY　281　418-428　2017/03

DOI： 10.1016/j.cattod.2016.05.016 　

ISSN： 0920-5861

eISSN： 1873-4308
Catalytic performance of H-ZSM-5 zeolites for conversion of ethanol or ethylene to propylene: Effect of reaction pressure and SiO2/Al2O3 ratio Peer-reviewed

Wei Xia, Fangfang Wang, Xichuan Mu, Kun Chen, Atsushi Takahashi, Isao Nakamura, Tadahiro Fujitani

CATALYSIS COMMUNICATIONS　91　62-66　2017/03

DOI： 10.1016/j.catcom.2016.12.010 　

ISSN： 1566-7367

eISSN： 1873-3905
Highly selective catalytic conversion of ethanol to propylene over yttrium-modified zirconia catalyst Peer-reviewed

Wei Xia, Fangfang Wang, Xichuan Mu, Kun Chen, Atsushi Takahashi, Isao Nakamura, Tadahiro Fujitani

CATALYSIS COMMUNICATIONS　90　10-13　2017/02

DOI： 10.1016/j.catcom.2016.11.011 　

ISSN： 1566-7367

eISSN： 1873-3905
Conversion of levulinic acid to BTX over different zeolite catalysts Peer-reviewed

Asima Sultana, Tadahiro Fujitani

CATALYSIS COMMUNICATIONS　88　26-29　2017/01

DOI： 10.1016/j.catcom.2016.09.023 　

ISSN： 1566-7367

eISSN： 1873-3905
Mechanism and active sites of CO oxidation over single-crystal Au surfaces and a Au/TiO2(110) model surface Peer-reviewed

Tadahiro Fujitani, Isao Nakamura

CHINESE JOURNAL OF CATALYSIS　37　(10)　1676-1683　2016/10

DOI： 10.1016/S1872-2067(16)62516-0 　

ISSN： 0253-9837

eISSN： 1872-2067
Role of metal oxide supports in NH3 decomposition over Ni catalysts Peer-reviewed

Isao Nakamura, Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　524　45-49　2016/08

DOI： 10.1016/j.apcata.2016.05.020 　

ISSN： 0926-860X

eISSN： 1873-3875
Removal of Phosphate from Aqueous Solution Using Layered Double Hydroxide Prepared from Waste Iron-Making Slag

Yasutaka Kuwahara, Shigetaka Tamagawa, Tadahiro Fujitani, Hiromi Yamashita

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　89　(4)　472-480　2016/04

DOI： 10.1246/bcsj.20150424 　

ISSN： 0009-2673

eISSN： 1348-0634
Kinetic Analysis of Decomposition of Ammonia over Nickel and Ruthenium Catalysts Peer-reviewed

Takahashi Atsushi, Fujitani Tadahiro

Journal of Chemical Engineering of Japan　49　(1)　22-28　2016
Publisher: The Society of Chemical Engineers, Japan
DOI： 10.1252/jcej.14we431 　

ISSN： 0021-9592

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The present study investigates the decomposition of ammonia (NH₃) over Ni and Ru catalysts using a kinetic model based on a reaction mechanism consisting of kinetically important elementary steps. Experimental results obtained over a wide range of reaction conditions were reproduced by the model. Recombinative N₂ desorption was the rate-limiting step on the Ru catalyst; whereas, the overall rate of NH₃ decomposition was controlled by the NH₃ dehydrogenation step on the Ni catalyst.
Effects of particle size on catalytic conversion of ethanol to propylene over H-ZSM-5 catalysts-Smaller is better Peer-reviewed

Tadahiro Fujitani

CATALYSIS COMMUNICATIONS　73　27-33　2016

DOI： 10.1016/J.CATCOM.2015.10.008 　
A Career in Catalysis: Masatake Haruta

Mitsutaka Okumura, Tadahiro Fujitani, Jiahui Huang, Tamao Ishida

ACS CATALYSIS　5　(8)　4699-4707　2015/08

DOI： 10.1021/acscatal.5b01122 　

ISSN： 2155-5435
Kinetic analysis of decomposition of ammonia over nickel and ruthenium catalysts

Atsushi Takahashi, Tadahiro Fujitani

Catalysis and Reaction Engineering Division 2015 - Core Programming Area at the 2015 AIChE Annual Meeting　2　1024-1026　2015
Publisher: AIChE
Surface structure and local electronic states of model catalyst of TiO2 nano-clusters supproted on Au(111) studied by STM/STS

Konno Junpei, Kosaka Rafael Yoshinori, Fujitani Tadahiro, Kondo Takahiro, Nakamura Junji

Abstract of annual meeting of the Surface Science of Japan　35　45-45　2015
Publisher: The Surface Science Society of Japan
DOI： 10.14886/sssj2008.35.0_45 　
Effect of oxomolybdate species dispersion on direct methanol oxidation to dimethoxymethane over MoOx/TiO2 catalysts Peer-reviewed

Faye Jeremy, Capron Mickael, Takahashi Atsushi, Paul Sebastien, Katryniok Benjamin, Fujitani Tadahiro, Dumeignil Franck

Energy Science & Engineering　3　(2)　115-125　2015

DOI： 10.1002/ese3.53 　

ISSN： 2050-0505
Conversion of Methyl Lactate to Acrylates over Modified NaY Zeolite Catalysts Peer-reviewed

Takahashi Atsushi, Shibasaki-Kitakawa Naomi, Fujitani Tadahiro

Bulletin of the Chemical Society of Japan　88　(11)　1581-1583　2015
Publisher: The Chemical Society of Japan
DOI： 10.1246/bcsj.20150213 　

ISSN： 0009-2673

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The catalytic activity of alkali metal- and alkaline earth metal-modified NaY zeolites for production of acrylic acid and methyl acrylate from methyl lactate was investigated. The reaction pathways and the role of the alkali metals in acrylate production are discussed.
Microscope Analysis of Au-Pd/TiO2 Glycerol Oxidation Catalysts Prepared by Deposition-Precipitation Method Peer-reviewed

Naoki Mimura, Norihito Hiyoshi, Masakazu Date, Tadahiro Fujitani, Franck Dumeignil

CATALYSIS LETTERS　144　(12)　2167-2175　2014/12

DOI： 10.1007/s10562-014-1382-6 　

ISSN： 1011-372X

eISSN： 1572-879X
Esterification of levulinic acid with ethanol over sulfated mesoporous zirconosilicates: Influences of the preparation conditions on the structural properties and catalytic performances

Yasutaka Kuwahara, Tadahiro Fujitani, Hiromi Yamashita

CATALYSIS TODAY　237　18-28　2014/11

DOI： 10.1016/j.cattod.2013.11.008 　

ISSN： 0920-5861

eISSN： 1873-4308
Role of Water in CO Oxidation on Gold Catalysts Peer-reviewed

T. Fujitani, I. Nakamura, M. Haruta

CATALYSIS LETTERS　144　(9)　1475-1486　2014/09

DOI： 10.1007/s10562-014-1325-2 　

ISSN： 1011-372X

eISSN： 1572-879X
Effect of Water on Low-Temperature CO Oxidation Over a Au/Al2O3 Model Catalyst Peer-reviewed

I. Nakamura, T. Fujitani

CATALYSIS LETTERS　144　(7)　1113-1117　2014/07

DOI： 10.1007/s10562-014-1261-1 　

ISSN： 1011-372X

eISSN： 1572-879X
Esterification of levulinic acid with ethanol over sulfated Si-doped ZrO₂ solid acid catalyst: Study of the structure-activity relationships

Yasutaka Kuwahara, Wako Kaburagi, Koji Nemoto, Tadahiro Fujitani

Applied Catalysis A: General　476　186-196　2014/04

DOI： 10.1016/j.apcata.2014.02.032 　

ISSN： 0926-860X

eISSN： 1873-3875
TiO_x/Au(111)表面の局所電子状態観測

KOSAKA RAFAEL YOSHINORI, 森戸裕二郎, 藤谷忠博, 近藤剛弘, 中村潤児

表面科学学術講演会要旨集　34　163-163　2014
Publisher: 公益社団法人日本表面科学会
DOI： 10.14886/sssj2008.34.0_163 　

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CO酸化触媒として注目を浴びている金チタニア触媒の活性点と反応メカニズムを、触媒表面の局所的な電子状態に着目して明らかにすることを目的とした研究である。金とチタニアの接合界面に着目して、Au(111)表面にTiO_x微粒子を蒸着し触媒のモデルとしてTiO_x/Au(111)を作成した。モデル表面の局所電子状態を、走査トンネル顕微鏡STM、走査トンネル分光STSを用いて観測した結果を本講演で報告する。
Liquid phase oxidation of glycerol in batch and flow-type reactors with oxygen over Au-Pd nanoparticles stabilized in anion-exchange resin Peer-reviewed

Naoki Mimura, Norihito Hiyoshi, Tadahiro Fujitani, Franck Dumeignil

RSC ADVANCES　4　(63)　33416-33423　2014

DOI： 10.1039/c4ra04960h 　

ISSN： 2046-2069

eISSN： 2046-2069
Catalytic conversion of levulinic acid and its esters to γ-valerolactone over silica-supported zirconia catalysts

Yasutaka Kuwahara, Wako Kaburagi, Tadahiro Fujitani

Bulletin of the Chemical Society of Japan　87　(11)　1252-1254　2014/01/01
Publisher: The Chemical Society of Japan
DOI： 10.1246/bcsj.20140205 　

ISSN： 0009-2673
Catalytic transfer hydrogenation of levulinate esters to γ-valerolactone over supported ruthenium hydroxide catalysts

Tadahiro Fujitani

RSC ADVANCES　4　45848-45855　2014/01/01

DOI： 10.1039/C4RA08074B 　
A novel conversion process for waste slag: synthesis of calcium silicate hydrate from blast furnace slag and its application as a versatile adsorbent for water purification

Yasutaka Kuwahara, Shigetaka Tamagawa, Tadahiro Fujitani, Hiromi Yamashita

JOURNAL OF MATERIALS CHEMISTRY A　1　(24)　7199-7210　2013

DOI： 10.1039/c3ta11064h 　

ISSN： 2050-7488

eISSN： 2050-7496
Production of propylene from ethanol over ZSM-5 co-modified with zirconium and phosphorus Peer-reviewed

Song Zhaoxia, Liu Wei, Chen Cheng, Takahashi Atsushi, Fujitani Tadahiro

Reaction Kinetics Mechanisms and Catalysis　109　(1)　221-231　2013

DOI： 10.1007/s11144-013-0546-5 　

ISSN： 1878-5190
Difference between the mechanisms of propylene production from methanol and ethanol over ZSM-5 catalysts Peer-reviewed

Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　467　380-385　2013

DOI： 10.1016/J.APCATA.2013.07.064 　
Development of Simulator for Bio-Propylene Synthesis Process Peer-reviewed

Taniguchi Satoshi, Ohmori Takao, Kawamura Mitsutaka, Kataoka Sho, Yamamoto Takuji, Nakaiwa Masaru, Takahashi Atsusi, Fujitani Tadahiro

Kagaku Kogaku Ronbunshu　39　(2)　126-131　2013
Publisher: The Society of Chemical Engineers, Japan
DOI： 10.1252/kakoronbunshu.39.126 　

ISSN： 0386-216X

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A process simulator was developed for the synthesis of bio-propylene from bio-ethanol with a zeolite catalyst by determining the reaction mechanism and the reaction rate constants that simulate the experimental data. The reaction mechanism thus determined consisted of 28 reactions involving 16 chemical species. The values of the reaction rate constants (the frequency factors and the activated energies) were determined by use of a genetic algorithm to solve the non-linear optimization problem of minimizing the differences between the simulated values and the experimental data. As a result, the behavior of experimental data, especially for the major species such as propylene and ethylene, was well explained by the output of the simulator developed in this work. Therefore, the simulator should be useful for optimizing the design and the operation of reactor in this process.
Al-modified mesoporous silica for efficient conversion of methanol to dimethyl ether Peer-reviewed

Faye Jeremy, Takahashi Atsushi, Capron Mickael, Fongarland Pascal, Dumeignil Franck, Fujitani Tadahiro

Rsc Advances　3　(17)　5895-5902　2013

DOI： 10.1039/c3ra22734k 　

ISSN： 2046-2069
CO oxidation over Au/Al2O3 model catalyst

NAKAMURA ISAO, FUJITANI TADAHIRO

Abstract of annual meeting of the Surface Science of Japan　32　33-33　2012
Publisher: The Surface Science Society of Japan
DOI： 10.14886/sssj2008.32.0_33 　
Preparation of Au-Pd bimetallic nano-particle catalysts and application to selective oxidation of compounds from biomass

Mimura Naoki, Fujitani Tadahiro, Shirai Masayuki, Hanaoka Takaaki

Abstract of annual meeting of the Surface Science of Japan　32　205-205　2012
Publisher: The Surface Science Society of Japan
DOI： 10.14886/sssj2008.32.0_205 　
Mechanistic difference of methanol-to-olefins (MTO) and ethanol-to-olefins (ETO) reactions over H-ZSM-5 catalysts Peer-reviewed

Tadahiro Fujitani

MATERIALS PROCESSING TECHNOLOGY II, PTS 1-4　538-541　2417-2420　2012

DOI： 10.4028/WWW.SCIENTIFIC.NET/AMR.538-541.2417 　
Influence of Au and TiO2 structures on hydrogen dissociation over TiO2/Au(100) Peer-reviewed

Nakamura I, Mantoku H, Furukawa T, Takahashi A, Fujitani T

Surface Science　606　(21-22)　1581-1585　2012

DOI： 10.1016/j.susc.2012.06.012 　

ISSN： 0039-6028

eISSN： 1879-2758
Effects of added phosphorus on conversion of ethanol to propylene over ZSM-5 catalysts Peer-reviewed

Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　423　162-167　2012

DOI： 10.1016/J.APCATA.2012.02.029 　
Adsorptive Removal of Hydrogen Sulfide from Bioethanol-Derived Propylene Peer-reviewed

Yamamoto Takuji, Takahashi Atsushi, Fujitani Tadahiro, Endo Akira, Ohmori Takao, Sakaki Keiji, Shimada Hiromichi

Journal of Chemical Engineering of Japan　45　(12)　955-959　2012
Publisher: The Society of Chemical Engineers, Japan
DOI： 10.1252/jcej.12we101 　

ISSN： 0021-9592

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To synthesize polymer-grade propylene from bioethanol containing an organosulfur compound such as dimethylsulfide (DMS) or dimethylsulfoxide (DMSO), we examined the adsorptive desulfurization of propylene by employing commercial activated alumina. It was found that both DMS and DMSO were converted predominantly to hydrogen sulfide during the catalytic conversion of ethanol to propylene over HZSM-5 zeolite. The performance of the adsorbent was evaluated by measuring a packed-bed breakthrough curve for the adsorption of hydrogen sulfide in gaseous propylene. Because of the adsorptive desulfurization, the concentration of hydrogen sulfide in propylene could be reduced to less than 10 ppb.
Heterogeneous Catalysis by Gold Peer-reviewed

Takei Takashi, Akita Tomoki, Nakamura Isao, Fujitani Tadahiro, Okumura Mitsutaka, Okazaki Kazuyuki, Huang Jiahui, Ishida Tamao, Haruta Masatake, Gates BC, Jentoft FC

Advances in Catalysis, Vol 55　55　1-126　2012

DOI： 10.1016/B978-0-12-385516-9.00001-6 　

ISSN： 0360-0564

eISSN： 2163-0747
Synthesis of high-silica CHA type zeolite by interzeolite conversion of FAU type zeolite in the presence of seed crystals Peer-reviewed

Itakura Masaya, Goto Ikuhiro, Takahashi Atsushi, Fujitani Tadahiro, Ide Yusuke, Sadakane Masahiro, Sano Tsuneji

MICROPOROUS AND MESOPOROUS MATERIALS　144　(1-3)　91-96　2011/10

DOI： 10.1016/j.micromeso.2011.03.041 　

ISSN： 1387-1811
Active Sites for Hydrogen Dissociation over TiOx/Au(111) Surfaces Peer-reviewed

I. Nakamura, H. Mantoku, T. Furukawa, T. Fujitani

JOURNAL OF PHYSICAL CHEMISTRY C　115　(32)　16074-16080　2011/08

DOI： 10.1021/jp2042087 　

ISSN： 1932-7447

eISSN： 1932-7455
Effect of acidity of ZSM-5 zeolite on conversion of ethanol to propylene Peer-reviewed

Furumoto Yoshiyasu, Harada Yasumitsu, Tsunoji Nao, Takahashi Atsushi, Fujitani Tadahiro, Ide Yusuke, Sadakane Masahiro, Sano Tsuneji

APPLIED CATALYSIS A-GENERAL　399　(1-2)　262-267　2011/05/31

DOI： 10.1016/j.apcata.2011.04.009 　

ISSN： 0926-860X

eISSN： 1873-3875
Effect of gold oxidation state on the epoxidation and hydrogenation of propylene on Au/TS-1 Peer-reviewed

Jason Gaudet, Kyoko K. Bando, Zhaoxia Song, Tadahiro Fujitani, Wei Zhang, Dang Sheng Su, S. Ted Oyama

JOURNAL OF CATALYSIS　280　(1)　40-49　2011/05

DOI： 10.1016/j.jcat.2011.03.001 　

ISSN： 0021-9517

eISSN： 1090-2694
Noble Metal Collection through Air: Perovskite Oxide as a Novel Collector Peer-reviewed

Masakazu Date, Katsuhiro Nomura, Hiroyuki Kageyama, Tadahiro Fujitani

CHEMPHYSCHEM　12　(1)　109-111　2011/01

DOI： 10.1002/cphc.201000618 　

ISSN： 1439-4235
Mechanism and Active Sites of the Oxidation of CO over Au/TiO2 Peer-reviewed

Tadahiro Fujitani, Isao Nakamura

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　50　(43)　10144-10147　2011

DOI： 10.1002/anie.201104694 　

ISSN： 1433-7851

eISSN： 1521-3773
Multinuclear solid-state NMR study of the coordinative nature of alkylaluminum cocatalyst on Phillips CrO_x/SiO₂ catalyst Peer-reviewed

Tadahiro Fujitani

APPLIED CATALYSIS A-GENERAL　389　(1月2日)　186-194　2010/12/01

DOI： 10.1016/J.APCATA.2010.09.023 　

ISSN： 0926-860X
Nanoparticle arrangement by DNA-programmed self-assembly for catalyst applications

Y. Maeda, T. Akita, M. Date, A. Takagi, T. Matsumoto, T. Fujitani, M. Kohyama

JOURNAL OF APPLIED PHYSICS　108　(9)　2010/11

DOI： 10.1063/1.3505690 　

ISSN： 0021-8979
Conversion of ethanol to propylene over HZSM-5 type zeolites containing alkaline earth metals Peer-reviewed

Daisuke Goto, Yasumitsu Harada, Yoshiyasu Furumoto, Atsushi Takahashi, Tadahiro Fujitani, Yasunori Oumi, Masahiro Sadakane, Tsuneji Sano

Applied Catalysis A: General　383　(1-2)　89-95　2010/07/31

DOI： 10.1016/j.apcata.2010.05.032 　

ISSN： 0926-860X

eISSN： 1873-3875
リン修飾ZSM-5触媒上でのエタノールからのプロピレン合成反応

高橋厚, 中村功, 島田広道, 藤谷忠博

化学工学会研究発表講演要旨集　2010　635-635　2010
Publisher: 公益社団法人化学工学会
DOI： 10.11491/scej.2010f.0.635.0 　
Study of active sites on the MFI zeolite catalysts for the transformation of ethanol into propylene Peer-reviewed

Tadahiro Fujitani

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL　328　(1-2)　114-118　2010

DOI： 10.1016/J.MOLCATA.2010.06.008 　
Phosphorus-modified ZSM-5 for conversion of ethanol to propylene Peer-reviewed

Song Zhaoxia, Takahashi Atsushi, Nakamura Isao, Fujitani Tadahiro

Applied Catalysis a-General　384　(1-2)　201-205　2010

DOI： 10.1016/j.apcata.2010.06.035 　
Catalytic Performance of Aged Rh/CeO₂-ZrO₂ for NO-C₃H₆-O₂ Reaction Under a Stoichiometric Condition Peer-reviewed

Tadahiro Fujitani

TOPICS IN CATALYSIS　52　(13-20)　1868-1872　2009/12

DOI： 10.1007/S11244-009-9347-5 　
Effect of composition and promoters in Au/TS-1 catalysts for direct propylene epoxidation using H-2 and O-2 Peer-reviewed

Jiqing Lu, Xiaoming Zhang, Juan J. Bravo-Suarez, Tadahiro Fujitani, S. Ted Oyama

CATALYSIS TODAY　147　(3-4)　186-195　2009/10

DOI： 10.1016/j.cattod.2008.09.005 　

ISSN： 0920-5861
Effect of Al2O3 support on morphology and NO reactivity of Rh Peer-reviewed

I. Nakamura, T. Fujitani

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A　27　(4)　895-899　2009/07

DOI： 10.1116/1.3081887 　

ISSN： 0734-2101

eISSN： 1520-8559
Synthesis of LEV zeolite by interzeolite conversion method and its catalytic performance in ethanol to olefins reaction Peer-reviewed

Takayuki Inoue, Masaya Itakura, Hery Jon, Yasunori Oumi, Atsushi Takahashi, Tadahiro Fujitani, Tsuneji Sano

Microporous and Mesoporous Materials　122　(1-3)　149-154　2009/06/01

DOI： 10.1016/j.micromeso.2009.02.027 　

ISSN： 1387-1811

eISSN： 1873-3093
Adsorption Behavior and Reaction Properties of NO and CO on Ir(111) and Rh(111) Peer-reviewed

I. Nakamura, T. Fujitani

CATALYSIS SURVEYS FROM ASIA　13　(1)　22-29　2009/03

DOI： 10.1007/s10563-009-9064-x 　

ISSN： 1571-1013

eISSN： 1574-9266
Copolymerization of Ethylene and Cyclopentene with the Phillips CrOx/SiO2 Catalyst in the Presence of an Aluminum Alkyl Cocatalyst

Wei Xia, Kiwamu Tonosaki, Toshiaki Taniike, Minoru Terano, Tadahiro Fujitani, Boping Liu

JOURNAL OF APPLIED POLYMER SCIENCE　111　(4)　1869-1877　2009/02

DOI： 10.1002/app.29207 　

ISSN： 0021-8995
CRYSTAF Analysis of Polyethylene Synthesized with Phillips Catalyst

Wei Xia, Toshiaki Taniike, Minoru Terano, Tadahiro Fujitani, Boping Liu, Joao B. P. Soares

MACROMOLECULAR SYMPOSIA　285　74-80　2009

DOI： 10.1002/masy.200951110 　

ISSN： 1022-1360
Adsorption and reaction properties of no and co over the ir and rh surfaces

Tadahiro Fujitani, Isao Nakamura

Journal of the Vacuum Society of Japan　52　(2)　61-66　2009
Publisher: Vacuum Society of Japan
DOI： 10.3131/jvsj2.52.61 　

ISSN： 1882-2398
Propene Epoxidation with Dioxygen Catalyzed by Gold Clusters Peer-reviewed

Tadahiro Fujitani

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　48　(42)　7862-7866　2009

DOI： 10.1002/ANIE.200903011 　

ISSN： 1433-7851
Selective Dissociation of O(3) and Adsorption of CO on Various Au Single Crystal Surfaces Peer-reviewed

Nakamura I, Takahashi A, Fujitani T

Catalysis Letters　129　(3-4)　400-403　2009

DOI： 10.1007/s10562-009-9846-9 　

ISSN： 1011-372X

eISSN： 1572-879X
Production of Propylene from Ethanol Over ZSM-5 Zeolites Peer-reviewed

Song Zhaoxia, Takahashi Atsushi, Mimura Naoki, Fujitani Tadahiro

Catalysis Letters　131　(3-4)　364-369　2009

DOI： 10.1007/s10562-009-0071-3 　

ISSN： 1011-372X

eISSN： 1572-879X
Hydrogen Dissociation by Gold Clusters Peer-reviewed

Tadahiro Fujitani

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　48　(50)　9515-9518　2009

DOI： 10.1002/ANIE.200905380 　
Catalytic performance of rhodium supported on ceria-zirconia mixed oxides for reduction of NO by propene Peer-reviewed

Tadahiro Fujitani

JOURNAL OF CATALYSIS　259　(2)　223-231　2008/10

DOI： 10.1016/J.JCAT.2008.08.007 　
Synthesis of high-silica CHA zeolite from FAU zeolite in the presence of benzyltrimethylammonium hydroxide Peer-reviewed

Masaya Itakura, Takayuki Inoue, Atsushi Takahashi, Tadahiro Fujitani, Yasunori Oumi, Tsuneji Sano

Chemistry Letters　37　(9)　908-909　2008/09/05

DOI： 10.1246/cl.2008.908 　

ISSN： 0366-7022

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A highly crystalline and pure high-silica chabazite zeolite with a Si/Al ratio of ca. 17 was obtained by the hydrothermal conversion of FAU zeolite used as a crystalline Si/Al source in benzyltrimethylammonium hydroxide media. Copyright © 2008 The Chemical Society of Japan.
Epoxidation of propylene with H-2 and O-2 in the explosive regime in a packed-bed catalytic membrane reactor Peer-reviewed

S. Ted Oyama, Xiaoming Zhang, Jiqing Lu, Yunfeng Gu, Tadahiro Fujitani

JOURNAL OF CATALYSIS　257　(1)　1-4　2008/07

DOI： 10.1016/j.jcat.2008.04.023 　

ISSN： 0021-9517
Mechanistic study of propane selective oxidation with H-2 and O-2 on Au/TS-1 Peer-reviewed

Juan J. Bravo-Suarez, Kyoko K. Bando, Tadahiro Fujitani, S. Ted Oyama

JOURNAL OF CATALYSIS　257　(1)　32-42　2008/07

DOI： 10.1016/j.jcat.2008.04.004 　

ISSN： 0021-9517
Oxidation of propane to propylene oxide on gold catalysts

Juan J. Bravo-Suarez, Kyoko K. Bando, Jiqing Lu, Tadahiro Fujitani, S. Ted Oyama

JOURNAL OF CATALYSIS　255　(1)　114-126　2008/04

DOI： 10.1016/j.jcat.2008.01.030 　

ISSN： 0021-9517

eISSN： 1090-2694
Role of zeolite structure on NO reduction with diesel fuel over Pt supported zeolite catalysts Peer-reviewed

Asima SULTANA, Masaaki HANEDA, Tadahiro FUJITANI, Hideaki HAMADA

Microporous and Mesoporous Materials　111　(1-3)　488-492　2008/04

DOI： 10.1016/j.micromeso.2007.08.023 　

ISSN： 1387-1811

eISSN： 1873-3093
Surface-initiated gas-phase epoxidation of propylene with molecular oxygen by silica-supported molybdenum oxide: Effects of addition of C3H8 or NO and reactor design Peer-reviewed

Zhaoxia Song, Naoki Mimura, Susumu Tsubota, Tadahiro Fujitani, S. Ted Oyama

CATALYSIS LETTERS　121　(1-2)　33-38　2008/02

DOI： 10.1007/s10562-007-9328-x 　

ISSN： 1011-372X
ゼオライト触媒によるエタノールからのプロピレン転換反応

高橋厚, Song Zhaoxia, Xia Wei, Wu Qiang, 中村功, 藤谷忠博

化学工学会研究発表講演要旨集　2008　764-764　2008
Publisher: 公益社団法人化学工学会
DOI： 10.11491/scej.2008f.0.764.0 　
Propane reacts with O-2 and H-2 on gold supported TS-1 to form oxygenates with high selectivity

J. J. Bravo-Suarez, K. K. Bando, T. Akita, T. Fujitani, T. J. Fuhrer, S. T. Oyama

CHEMICAL COMMUNICATIONS　(28)　3272-3274　2008

DOI： 10.1039/b800620b 　

ISSN： 1359-7345

eISSN： 1364-548X
Transient technique for identification of true reaction intermediates: Hydroperoxide species in propylene epoxidation on gold/titanosilicate catalysts by X-ray absorption fine structure spectroscopy Peer-reviewed

Juan J. Bravo-Suarez, Kyoko K. Bando, Jiqing Lu, Masatake Haruta, Tadahiro Fujitani, S. Ted Oyama

JOURNAL OF PHYSICAL CHEMISTRY C　112　(4)　1115-1123　2008/01

DOI： 10.1021/jp077501s 　

ISSN： 1932-7447

eISSN： 1932-7455
Kinetics and mechanism of NO reduction with CO on Ir surfaces Peer-reviewed

Tadahiro FUJITANI, Isao NAKAMURA, Atsushi TAKAHASHI, Masaaki HANEDA, Hideaki HAMADA

Journal of Catalysis　253　(1)　139-147　2008/01

DOI： 10.1016/j.jcat.2007.10.011 　

ISSN： 0021-9517
Kinetic study of propylene epoxidation with H-2 and O-2 over a gold/mesoporous titanosilicate catalyst Peer-reviewed

Juan J. Bravo-Suarez, Jiqing Lu, Carlos Gregorio Dallos, Tadahiro Fujitani, S. Ted Oyama

JOURNAL OF PHYSICAL CHEMISTRY C　111　(46)　17427-17436　2007/11

DOI： 10.1021/jp075098j 　

ISSN： 1932-7447
Direct propylene epoxidation over/barium-promoted Au/Ti-TUD catalysts with H-2 and O-2: Effect of Au particle size Peer-reviewed

Jiqing Lu, Xiaoming Zhang, Juan J. Bravo-Suarez, Kyoko K. Bando, Tadahiro Fujitani, S. Ted Oyama

JOURNAL OF CATALYSIS　250　(2)　350-359　2007/09

DOI： 10.1016/j.jcat.2007.06.006 　

ISSN： 0021-9517
Reaction properties of NO and CO over an Ir(211) surface Peer-reviewed

Tadahiro Fujitani

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A　25　(4)　1143-1146　2007/08

DOI： 10.1116/1.2721576 　
Promotive effect of Nb₂O₅ on the catalytic activity of Ir/SiO₂ for NO reduction with CO under oxygen-rich conditions Peer-reviewed

Tsukasa TAMAI, Masaaki HANEDA, Tadahiro FUJITANI, Hideaki HAMADA

Catalysis Communications　8　(6)　885-888　2007/06

DOI： 10.1016/j.catcom.2006.09.004 　

ISSN： 1566-7367

eISSN： 1873-3905
Influence of Al₂O₃ support on the activity of Ag/Al₂O₃ catalysts for SCR of NO with decane Peer-reviewed

Asima SULTANA, Masaaki HANEDA, Tadahiro FUJITANI, Hideaki HAMADA

Catalysis Letters　114　(1-2)　96-102　2007/03

DOI： 10.1007/s10562-007-9045-5 　

ISSN： 1011-372X

eISSN： 1572-879X
Adsorption and reactivity of SO₂ on Ir(111) and Rh(111) Peer-reviewed

Tadahiro FUJITANI, Isao NAKAMURA, Yukihiro KOBAYASHI, Atsushi TAKAHASHI, Masaaki HANEDA, Hideaki HAMADA

Surface Science　601　(6)　1615-1622　2007/03

DOI： 10.1016/j.susc.2007.01.034 　

ISSN： 0039-6028

eISSN： 1879-2758
Catalytic performance of monolithic Ir/SiO₂ based catalysts for selective reduction of NO with CO Peer-reviewed

Motoi SASAKI, Atsushi TAKAHASHI, Masaaki HANEDA, Tadahiro FUJITANI, Hideaki HAMADA

Bulletin of The Japan Petroleum Institute　50　(2)　94-101　2007/03
Publisher: The Japan Petroleum Institute
DOI： 10.1627/jpi.50.94 　

ISSN： 1346-8804

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Ir/SiO₂, Ir/WO₃-SiO₂ and Ba doped Ir/WO₃-SiO₂ powder catalysts have high activity for the selective reduction of NO with CO in the presence of O₂ (CO-SCR). The present study investigated the activity of these three Ir/SiO₂-based catalysts in monolithic form for industrial applications. The catalytic activity was evaluated during heating and cooling cycles between 200°C and 600°C. All monolithic catalysts showed low activity for NO reduction during the first heating cycle but high activity appeared from the next cycle. The active temperatures for the monolithic catalysts are different to those for the powder catalysts, probably because of the differences in heat and mass transfer. The activities for CO-SCR gradually decreased with the number of cycles. The activity and durability of the monolith catalysts were consistent with those of the powder catalysts. Ba doped Ir/WO₃-SiO₂ monolith catalyst was the best catalyst. XRD spectroscopy showed that catalyst deactivation was caused by oxidation of iridium metal, which is the active species, because the activities of the aged catalysts were recovered by hydrogen reduction. The presence of SO₂ in the reaction gas increased the activity of Ir/SiO₂ catalyst, but had little effect on the activities of Ir/WO₃-SiO₂ and Ba doped Ir/WO₃-SiO₂ catalysts.<br>
Enhancing effect of H₂ on the selective reduction of NO with CO over ba-doped Ir/WO₃/SiO₂ catalyst Peer-reviewed

Tadahiro Fujitani

CATALYSIS LETTERS　118　(3-4)　159-164　2007

DOI： 10.1007/S10562-007-9203-9 　
Selective reduction of NO2 with acetaldehyde over Co/Al2O3 in lean conditions

Atsushi Takahashi, Masaaki Haneda, Tadahiro Fujitani, Hideaki Hamada

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL　261　(1)　6-11　2007/01

DOI： 10.1016/j.molcata.2006.07.065 　

ISSN： 1381-1169
Role of tungsten in promoting selective reduction of NO with CO over Ir/WO₃-SiO₂ catalysts Peer-reviewed

Atsushi TAKAHASHI, Isao NAKAMURA, Masaaki HANEDA, Tadahiro FUJITANI, Hideaki HAMADA

Catalysis Letters　112　(3-4)　133-138　2006/12

DOI： 10.1007/s10562-006-0192-x 　

ISSN： 1011-372X
Effect of iridium dispersion on the catalytic activity of Ir/SiO2 for the selective reduction of NO with CO in the presence of O-2 and SO2

Masaaki Haneda, Tadahiro Fujitani, Hideaki Hamada

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL　256　(1-2)　143-148　2006/08

DOI： 10.1016/j.molcata.2006.04.058 　

ISSN： 1381-1169
Adsorption behavior and reaction properties of NO and CO on Rh(111)

I. Nakamura, Y. Kobayashi, H. Hamada, T. Fujitani

SURFACE SCIENCE　600　(16)　3235-3242　2006/08

DOI： 10.1016/j.susc.2006.06.009 　

ISSN： 0039-6028
Enhanced activity of Ba-doped Ir/SiO2 catalyst for NO reduction with CO in the presence of O-2 and SO2

M Haneda, H Kudo, Y Nagao, T Fujitani, H Hamada

CATALYSIS COMMUNICATIONS　7　(7)　423-426　2006/07

DOI： 10.1016/j.catcom.2005.12.020 　

ISSN： 1566-7367

eISSN： 1873-3905
Rapid quantitative analysis method for products of gas phase oxidation of propylene Peer-reviewed

Atsushi Takahashi, Noriyasu Hamakawa, Tadahiro Fujitani

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE　49　(3)　151-155　2006/05

DOI： 10.1627/jpi.49.151 　

ISSN： 1346-8804
Excellent promoting effect of Ba addition on the catalytic activity of Ir/WO3-SiO2 for the selective reduction of NO with CO

Atsushi Takahashi, Tadahiro Fujitani, Isao Nakamura, Yasuhiro Katsuta, Masaaki Haneda, Hideaki Hamada

CHEMISTRY LETTERS　35　(4)　420-421　2006/04

DOI： 10.1246/cl.2006.420 　

ISSN： 0366-7022

eISSN： 1348-0715
DFT studies of interaction of ir cluster with O-2, CO and NO

M Okumura, Y Irie, Y Kitagawa, T Fujitani, Y Maeda, T Kasai, K Yamaguchi

CATALYSIS TODAY　111　(3-4)　311-315　2006/02

DOI： 10.1016/j.cattod.2005.10.042 　

ISSN： 0920-5861

eISSN： 1873-4308
Direct decomposition of nitrogen monoxide over a K-deposited Co(0001) surface: Comparison to K-doped cobalt oxide catalysts

Nakamura, I, A Haneda, H Hamada, T Fujitani

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　150　(2-3)　150-154　2006/02

DOI： 10.1016/j.elspec.2005.01.295 　

ISSN： 0368-2048
Selective catalytic reduction of nitrogen monoxide with H2 or CO as reductant in presence of SO2

Masaaki Haneda, Tadahiro Fujitani, Hideaki Hamada

Journal of the Japan Petroleum Institute　49　(5)　219-230　2006

DOI： 10.1627/jpi.49.219 　

ISSN： 1346-8804 1349-273X
プロピレンの気相酸化反応生成物の迅速定量分析法

高橋厚, 濱川哲康, 藤谷忠博

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE　49　(3)　151-155　2006

DOI： 10.1627/jpi.49.151 　

ISSN： 1346-8804 1349-273X
Catalytic active site for NO decomposition elucidated by surface science and real catalyst

M Haneda, Nakamura, I, T Fujitani, H Hamada

CATALYSIS SURVEYS FROM ASIA　9　(4)　207-215　2005/12

DOI： 10.1007/s10563-005-9156-1 　

ISSN： 1571-1013
Effects of added 3d transition-metals on Ag-based catalysts for direct epoxidation of propylene by oxygen

A Takahashi, N Hamakawa, Nakamura, I, T Fujitani

APPLIED CATALYSIS A-GENERAL　294　(1)　34-39　2005/10

DOI： 10.1016/j.apcata.2005.06.026 　

ISSN： 0926-860X

eISSN： 1873-3875
Adsorption and reactions of NO on clean and CO-precovered Ir(111)

T Fujitani, Nakamura, I, Y Kobayashi, A Takahashi, M Haneda, H Hamada

JOURNAL OF PHYSICAL CHEMISTRY B　109　(37)　17603-17607　2005/09

DOI： 10.1021/jp053092t 　

ISSN： 1520-6106
Reactivity of NO over K-deposited Pd(111) and surface structure of the catalyst

Nakamura, I, H Hamada, T Fujitani

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A　23　(4)　1051-1054　2005/07

DOI： 10.1116/1.1863952 　

ISSN： 0734-2101

eISSN： 1520-8559
Studies of NO adsorption on Pt(110)-(1 x 2) and (1 x 1) surfaces using density functional theory

H Orita, Nakamura, I, T Fujitani

JOURNAL OF PHYSICAL CHEMISTRY B　109　(20)　10312-10318　2005/05

DOI： 10.1021/jp050808b 　

ISSN： 1520-6106
Structure and NO reactivity of Zr-deposited Pd surfaces

Nakamura, I, H Hamada, T Fujitani

APPLIED SURFACE SCIENCE　240　(1-4)　77-84　2005/02

DOI： 10.1016/j.apsusc.2004.06.018 　

ISSN： 0169-4332

eISSN： 1873-5584
Promotional effect Of SO2 on the activity of Ir/SiO2 for NO reduction with CO under oxygen-rich conditions

M Haneda, Pusparatu, Y Kintaichi, Nakamura, I, M Sasaki, T Fujitani, H Hamada

JOURNAL OF CATALYSIS　229　(1)　197-205　2005/01

DOI： 10.1016/j.jcat.2004.10.022 　

ISSN： 0021-9517
A density functional study of NO adsorption and decomposition on Ni(211) and Pd(211) surfaces

H Orita, Nakamura, I, T Fujitani

JOURNAL OF CHEMICAL PHYSICS　122　(1)　014703-　2005/01

DOI： 10.1063/1.1828036 　

ISSN： 0021-9606
Adsorption and decomposition of NO on stepped and K-deposited Pd surfaces: a comparison of NO stretching vibrational frequencies calculated by density functional theory and measured by infrared spectroscopy

H Orita, Nakamura, I, T Fujitani

SURFACE SCIENCE　571　(1-3)　102-116　2004/11

DOI： 10.1016/j.susc.2004.08.004 　

ISSN： 0039-6028

eISSN： 1879-2758
Size and density of Au particles deposited on TiO2 (110)-(1x1) and cross-linked (1x2) surfaces

Y Maeda, T Fujitani, S Tsubota, M Haruta

SURFACE SCIENCE　562　(1-3)　1-6　2004/08

DOI： 10.1016/j.susc.2004.06.158 　

ISSN： 0039-6028
Adsorption and decomposition of NO on K-deposited Pd(111)

Nakamura, I, H Hamada, T Fujitani

SURFACE SCIENCE　544　(1)　45-50　2003/10

DOI： 10.1016/j.susc.2003.08.010 　

ISSN： 0039-6028
Effect of surface structure of supported palladium catalysts on the activity for direct decomposition of nitrogen monoxide

M Haneda, Y Kintaichi, Nakamura, I, T Fujitani, H Hamada

JOURNAL OF CATALYSIS　218　(2)　405-410　2003/09

DOI： 10.1016/S0021-9517(03)00158-1 　

ISSN： 0021-9517
On the issue of the active site and the role of ZnO in Cu/ZnO methanol synthesis catalysts

J Nakamura, Y Choi, T Fujitani

TOPICS IN CATALYSIS　22　(3-4)　277-285　2003/04

DOI： 10.1023/A:1023588322846 　

ISSN： 1022-5528

eISSN： 1572-9028
NO decomposition on an Mn-deposited Pd(100) surface

Nakamura, I, H Hamada, T Fujitani

CATALYSIS LETTERS　87　(1-2)　91-96　2003/04

DOI： 10.1023/A:1022817529904 　

ISSN： 1011-372X
Formation process of a Cu-Zn surface alloy on Cu(111) investigated by scanning tunneling microscopy

Miki Sano, Tomoyuki Adaniya, Tadahiro Fujitani, Junji Nakamura

Journal of Physical Chemistry B　106　(31)　7627-7633　2002/08/08

DOI： 10.1021/jp012810i 　

ISSN： 1089-5647
Oxidation of a Zn-deposited Cu(111) surface studied by XPS and STM

M Sano, T Adaniya, T Fujitani, J Nakamura

SURFACE SCIENCE　514　(1-3)　261-266　2002/08

DOI： 10.1016/S0039-6028(02)01639-4 　

ISSN： 0039-6028
Adsorption and decomposition of NO on Pd surfaces

Nakamura, I, T Fujitani, H Hamada

SURFACE SCIENCE　514　(1-3)　409-413　2002/08

DOI： 10.1016/S0039-6028(02)01660-6 　

ISSN： 0039-6028
Methanol synthesis from CO and CO2 Hydrogenations over supported palladium catalysts

T Fujitani, Nakamura, I

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　75　(6)　1393-1398　2002/06

DOI： 10.1246/bcsj.75.1393 　

ISSN： 0009-2673

eISSN： 1348-0634
Comprehensive study combining surface science and real catalyst for NO direct decomposition

M Haneda, Y Kintaichi, Nakamura, I, T Fujitani, H Hamada

CHEMICAL COMMUNICATIONS　23,2816-2817　(23)　2816-2817　2002

DOI： 10.1039/b207619e 　

ISSN： 1359-7345
Structure-dependent kinetics for synthesis and decomposition of formate species over Cu(111) and Cu(110) model catalysts Peer-reviewed

H Nakano, Nakamura, I, T Fujitani, J Nakamura

JOURNAL OF PHYSICAL CHEMISTRY B　105　(7)　1355-1365　2001/02

DOI： 10.1021/jp002644z 　

ISSN： 1520-6106
The role of ZnO in Cu/ZnO methanol synthesis catalysts - morphology effect or active site model? Peer-reviewed

Y Choi, K Futagami, T Fujitani, J Nakamura

APPLIED CATALYSIS A-GENERAL　208　(1-2)　163-167　2001/02

DOI： 10.1016/S0926-860X(00)00712-2 　

ISSN： 0926-860X
The difference in the active sites for CO2 and CO hydrogenations on Cu/ZnO-based methanol synthesis catalysts Peer-reviewed

Y Choi, K Futagami, T Fujitani, J Nakamura

CATALYSIS LETTERS　73　(1)　27-31　2001

DOI： 10.1023/A:1009074219286 　

ISSN： 1011-372X
Advances in joint research between NIRE and RITE for developing a novel technology for methanol synthesis from CO2 and H-2

M Saito, M Takeuchi, T Fujitani, J Toyir, SC Luo, JG Wu, H Mabuse, K Ushikoshi, K Mori, T Watanabe

APPLIED ORGANOMETALLIC CHEMISTRY　14　(12)　763-772　2000/12

DOI： 10.1002/1099-0739(200012)14:12<763::AID-AOC98>3.0.CO;2-4 　

ISSN： 0268-2605
Surface structure of MnO/Rh(100) studied by scanning tunneling microscopy and low-energy electron diffraction

H Nishimura, T Tashiro, T Fujitani, J Nakamura

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS　18　(4)　1460-1463　2000/07

DOI： 10.1116/1.582370 　

ISSN： 0734-2101
Carbon deposition by disproportionation of CO on a Ni(977) surface Peer-reviewed

H Nakano, S Kawakami, T Fujitani, J Nakamura

SURFACE SCIENCE　454　295-299　2000/05

DOI： 10.1016/S0039-6028(00)00265-X 　

ISSN： 0039-6028
Synthesis and decomposition of formate on a Cu/SiO2 catalyst: Comparison to Cu(111) Peer-reviewed

T Yatsu, H Nishimura, T Fujitani, J Nakamura

JOURNAL OF CATALYSIS　191　(2)　423-429　2000/04

DOI： 10.1006/jcat.2000.2810 　

ISSN： 0021-9517

eISSN： 1090-2694
Synthesis and decomposition of formate on a Cu(111) surface - kinetic analysis Peer-reviewed

H Nishimura, T Yatsu, T Fujitani, T Uchijima, J Nakamura

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL　155　(1-2)　3-11　2000/04

DOI： 10.1016/S1381-1169(99)00314-3 　

ISSN： 1381-1169
Scanning tunneling microscopy study of formate species synthesized from CO2 hydrogenation and prepared by adsorption of formic acid over Cu(111) Peer-reviewed

T Fujitani, Y Choi, M Sano, Y Kushida, J Nakamura

JOURNAL OF PHYSICAL CHEMISTRY B　104　(6)　1235-1240　2000/02

DOI： 10.1021/jp9920242 　

ISSN： 1520-6106
Antiproton-nucleon annihilation into π⁰M and ηM with M = η, ω, ρ, and π in antiproton-deuterium annihilation at rest

Tadahiro Fujitani

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN　2000

DOI： 10.1143/JPSJ.69.1356 　
The chemical modification seen in the Cu/ZnO methanol synthesis catalysts Peer-reviewed

T Fujitani, J Nakamura

APPLIED CATALYSIS A-GENERAL　191　(1-2)　111-129　2000/01

DOI： 10.1016/S0926-860X(99)00313-0 　

ISSN： 0926-860X

eISSN： 1873-3875
Synthesis and decomposition of formate on Cu(111) and Cu(110) surfaces: Structure sensitivity Peer-reviewed

Nakamura, I, H Nakano, T Fujitani, T Uchijima, J Nakamura

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS　17　(4)　1592-1595　1999/07

DOI： 10.1116/1.581856 　

ISSN： 0734-2101

eISSN： 1520-8559
Ab initio study of surface structural changes during methanol synthesis over Zn/Cu(111)

Y Morikawa, K Iwata, J Nakamura, T Fujitani, K Terakura

CHEMICAL PHYSICS LETTERS　304　(1-2)　91-97　1999/04

DOI： 10.1016/S0009-2614(99)00233-X 　

ISSN： 0009-2614

eISSN： 1873-4448
Search for baryonia front a measurement of monochromatic π⁰ mesons in antiproton-deuterium annihilation at rest - art. no. 035204

Tadahiro Fujitani

PHYSICAL REVIEW C　1999

DOI： 10.1103/PHYSREVC.60.035204 　
Reply to the comment on "The effect of ZnO in methanol synthesis catalysts on Cu dispersion and the specific activity"

T Fujitani, J Nakamura

CATALYSIS LETTERS　63　(3-4)　245-247　1999

DOI： 10.1023/A:1019077223500 　

ISSN： 1011-372X
Evidence for a special formate species adsorbed on the Cu-Zn active site for methanol synthesis Peer-reviewed

Nakamura, I, H Nakano, T Fujitani, T Uchijima, J Nakamura

SURFACE SCIENCE　402　(1-3)　92-95　1998/05

DOI： 10.1016/S0039-6028(97)00910-2 　

ISSN： 0039-6028

eISSN： 1879-2758
The synthesis of methanol and the reverse water-gas shift reaction over Zn-deposited Cu(100) and Cu(110) surfaces: comparison with Zn/Cu(111) Peer-reviewed

Nakamura, I, T Fujitani, T Uchijima, J Nakamura

SURFACE SCIENCE　400　(1-3)　387-400　1998/03

DOI： 10.1016/S0039-6028(97)00899-6 　

ISSN： 0039-6028

eISSN： 1879-2758
7-6. Methanol Synthesis from CO_2 and H_2 : Advances in the Joint Research between NIRE and RITE

Saito Masahiro, Takeuchi Masami, Fujitani Tadahiro, Toyir Jamil, Luo Shengcheng, Wu Jingang, Ushikoshi Kenji, Mori Kozo, Watanabe Taiki

Proceedings of the Annual Conference of The Japan Institute of Energy　7　275-278　1998
Publisher: The Japan Institute of Energy
DOI： 10.20550/jietaikaiyoushi.7.0_275 　
The effect of ZnO in methanol synthesis catalysts on Cu dispersion and the specific activity Peer-reviewed

T Fujitani, J Nakamura

CATALYSIS LETTERS　56　(2-3)　119-124　1998

DOI： 10.1023/A:1019000927366 　

ISSN： 1011-372X
Methanol synthesis by hydrogenation of CO2 over a Zn-deposited Cu(111): formate intermediate Peer-reviewed

T Fujitani, Nakamura, I, S Ueno, T Uchijima, J Nakamura

APPLIED SURFACE SCIENCE　121　583-586　1997/11

DOI： 10.1016/S0169-4332(97)00372-3 　

ISSN： 0169-4332
The kinetics and mechanism of methanol synthesis by hydrogenation of CO2 over a Zn-deposited Cu(111) surface Peer-reviewed

T Fujitani, Nakamura, I, T Uchijima, J Nakamura

SURFACE SCIENCE　383　(2-3)　285-298　1997/07

DOI： 10.1016/S0039-6028(97)00192-1 　

ISSN： 0039-6028

eISSN： 1879-2758
X-ray photoelectron spectroscopy and scanning tunnel microscope studies of formate species synthesized on Cu(111) surfaces Peer-reviewed

J Nakamura, Y Kushida, Y Choi, T Uchijima, T Fujitani

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A　15　(3)　1568-1571　1997/05

DOI： 10.1116/1.580633 　

ISSN： 0734-2101

eISSN： 1520-8559
Pontecorvo reactions in antiproton annihilation at rest in deuterium to pi(0)n, pi(0)Delta(0), eta n, and pi Delta(0)

Tadahiro Fujitani

PHYSICAL REVIEW D　1997

DOI： 10.1103/PHYSREVD.55.2577 　
Measurement of monoenergetic neutrons from the (p)over-bard reaction at rest

Tadahiro Fujitani

PHYSICAL REVIEW D　1997

DOI： 10.1103/PHYSREVD.55.40 　
STM Study of Formate Species Synthesized on Cu(111) at Atmospheric Pressure.

KUSHIDA Yasuhiro, CHOI Yeongsoo, FUJITANI Tadahiro, UCHIJIMA Toshio, NAKAMURA Junji

J. Surf. Sci. Soc. Jpn.　18　(8)　478-484　1997
Publisher: The Surface Science Society of Japan
DOI： 10.1380/jsssj.18.478 　

ISSN： 0388-5321

More details Close

Formate species synthesized on Cu(111) by the hydrogenation of CO₂ at atmospheric pressure in a reactor was observed by UHV-STM. The ordered structure of the formate species changed in the order of p(2×4), c(2×8), (7×7), p(2×3), (5×5) and c(2×4) with increasing coverage, indicating that various ordered structures appeared corresponding to a small change in the formate coverage. The coverage of formate species in the c(2×4) structure corresponded to Θ_HCOO= 0.25, which was in good agreement with a saturation coverage measured by XPS at the same reaction condition; thus, particles seen in the STM images indicate each formate species. Further, at a low formate coverage (Θ_HCOO= 0.02), formate chains were observed.
Creation of the active site for methanol synthesis on a Cu/SiO2 catalyst Peer-reviewed

T Fujitani, T Matsuda, Y Kushida, S Ogihara, T Uchijima, J Nakamura

CATALYSIS LETTERS　49　(3-4)　175-179　1997

DOI： 10.1023/A:1019069708459 　

ISSN： 1011-372X
The role of ZnO in Cu/ZnO methanol synthesis catalysts

J Nakamura, T Uchijima, Y Kanai, T Fujitani

CATALYSIS TODAY　28　(3)　223-230　1996/05

DOI： 10.1016/0920-5861(95)00240-5 　

ISSN： 0920-5861
Development of copper/zinc oxide-based multicomponent catalysts for methanol synthesis from carbon dioxide and hydrogen

M Saito, T Fujitani, M Takeuchi, T Watanabe

APPLIED CATALYSIS A-GENERAL　138　(2)　311-318　1996/05

DOI： 10.1016/0926-860X(95)00305-3 　

ISSN： 0926-860X
A model catalyst for methanol synthesis: Zn-deposited and Zn-free Cu surfaces Peer-reviewed

Nakamura, I, T Fujitani, T Uchijima, J Nakamura

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A　14　(3)　1464-1468　1996/05

DOI： 10.1116/1.579970 　

ISSN： 0734-2101

eISSN： 1520-8559
A surface science investigation of methanol synthesis over a Zn-deposited polycrystalline Cu surface Peer-reviewed

J Nakamura, Nakamura, I, T Uchijima, Y Kanai, T Watanabe, M Saito, T Fujitani

JOURNAL OF CATALYSIS　160　(1)　65-75　1996/04

DOI： 10.1006/jcat.1996.0124 　

ISSN： 0021-9517
8-3. Methanol Synthesis from CO 2 and H 2 over Cu/ZnO-Based Multicomponent catalysts

SAITO Mashiro, FUJITANI Tadahiro, TAKEUCHI Masami, WATANABE Taiki

Proceedings of the Annual Conference of The Japan Institute of Energy　5　253-256　1996
Publisher: The Japan Institute of Energy
DOI： 10.20550/jietaikaiyoushi.5.0_253 　
The synergy between Cu and ZnO in methanol synthesis catalysts Peer-reviewed

Y Kanai, T Watanabe, T Fujitani, T Uchijima, J Nakamura

CATALYSIS LETTERS　38　(3-4)　157-163　1996

DOI： 10.1007/BF00806562 　

ISSN： 1011-372X
ROLE OF ZNO IN PROMOTING METHANOL SYNTHESIS OVER A PHYSICALLY-MIXED CU/SIO2 AND ZNO/SIO2 CATALYST

Y KANAI, T WATANABE, T FUJITANI, M SAITO, J NAKAMURA, T UCHIJIMA

ENERGY CONVERSION AND MANAGEMENT　36　(6-9)　649-652　1995/06

DOI： 10.1016/0196-8904(95)00089-V 　

ISSN： 0196-8904
DEVELOPMENT OF CU/ZNO-BASED HIGH-PERFORMANCE CATALYSTS FOR METHANOL SYNTHESIS BY CO2 HYDROGENATION

M SAITO, T FUJITANI, TAKAHARA, I, T WATANABE, M TAKEUCHI, Y KANAI, K MORIYA, T KAKUMOTO

ENERGY CONVERSION AND MANAGEMENT　36　(6-9)　577-580　1995/06

DOI： 10.1016/0196-8904(95)00071-K 　

ISSN： 0196-8904
DEVELOPMENT OF AN ACTIVE GA2O3 SUPPORTED PALLADIUM CATALYST FOR THE SYNTHESIS OF METHANOL FROM CARBON-DIOXIDE AND HYDROGEN

T FUJITANI, M SAITO, Y KANAI, T WATANABE, J NAKAMURA, T UCHIJIMA

APPLIED CATALYSIS A-GENERAL　125　(2)　L199-L202　1995/05

DOI： 10.1016/0926-860X(95)00049-6 　

ISSN： 0926-860X
METHANOL SYNTHESIS OVER A ZN-DEPOSITED COPPER MODEL CATALYST Peer-reviewed

J NAKAMURA, NAKAMURA, I, T UCHIJIMA, Y KANAI, T WATANABE, M SAITO, T FUJITANI

CATALYSIS LETTERS　31　(4)　325-331　1995

DOI： 10.1007/BF00808596 　

ISSN： 1011-372X
METHANOL SYNTHESIS BY THE HYDROGENATION OF CO2 OVER ZN-DEPOSITED CU(111) AND CU(110) SURFACES Peer-reviewed

T FUJITANI, NAKAMURA, I, T WATANABE, T UCHIJIMA, J NAKAMURA

CATALYSIS LETTERS　35　(3-4)　297-302　1995

DOI： 10.1007/BF00807186 　

ISSN： 1011-372X
Effect of Support on Methanol Synthesis over Cu Catalyst

FUJITANI Tadahiro, SAITO Masahiro, KANAI Yuki, WATANABE Taiki, NAKAMURA Junji, UCHIJIMA Toshio

Chemistry Letters　1994　(10)　1877-1880　1994/10/05
Publisher: The Chemical Society of Japan
DOI： 10.1246/cl.1994.1877 　

ISSN： 0366-7022

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The effect of metal oxides such as ZnO, Al₂O₃, ZrO₂, Ga₂O₃, and Cr₂O₃ contained in Cu-based catalysts was classified into two categories: Stabilization of the Cu⁺ species by metal oxides and improvement of the Cu dispersion.
THE ROLE OF METAL-OXIDES IN PROMOTING A COPPER CATALYST FOR METHANOL SYNTHESIS Peer-reviewed

T FUJITANI, M SAITO, Y KANAI, T KAKUMOTO, T WATANABE, J NAKAMURA, T UCHIJIMA

CATALYSIS LETTERS　25　(3-4)　271-276　1994

ISSN： 1011-372X
EVIDENCE FOR THE MIGRATION OF ZNO(X) IN A CU/ZNO METHANOL SYNTHESIS CATALYST Peer-reviewed

Y KANAI, T WATANABE, T FUJITANI, M SAITO, J NAKAMURA, T UCHIJIMA

CATALYSIS LETTERS　27　(1-2)　67-78　1994

ISSN： 1011-372X
Methanol Synthesis from CO_2 and H_2 over Cu/ZnO/Ga_2O_3 Catalyst

FUJITANI Tadahiro, SAITO Masahiro, KANAI Yuki, TAKEUCHI Masami, MORIYA Keiko, WATANABE Taiki, KAWAI Motomitsu

1993　(6)　1079-1080　1993/06/05

ISSN： 0366-7022
数種の担持金属触媒上でのメチルキノリン類の水蒸気脱アルキル〔英文〕

藤谷忠博, 斉藤昌弘, 三木淳

石油学会誌　36　(3)　p232-234　1993/05
Publisher: 石油学会
ISSN： 0582-4664
Steam Dealkylation of Methylquinolines over Several Supported Metal Catalysts.

FUJITANI Tadahiro, SAITO Masahiro, MIKI Jun

Journal of The Japan Petroleum Institute　36　(3)　232-234　1993
Publisher: The Japan Petroleum Institute
DOI： 10.1627/jpi1958.36.232 　

ISSN： 0582-4664

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The steam dealkylation of various methylquinolines was investigated over several supported metal (Ni, Pd, and Rh) catalysts in the temperature range of 300-400°C. An alumina-supported palladium catalyst exhibited the highest selectivity for quinoline. Indole and methylindoles were also formed during the dealkylation of methylquinolines.
Preparation of Highly Active Palladium Catalyst Supported on Silica by Ion Exchange Method

FUJITANI T.

Journal of the Chemical Society of Japan,chemistry and industrial chemistry　1991　(11)　p1475-1481　1991/11
Publisher:
ISSN： 0369-4577
MEASUREMENT OF GAMMA-RAYS FROM ANTIPROTON-DEUTERIUM ANNIHILATION AT REST

Tadahiro Fujitani

PHYSICAL REVIEW D　1991

DOI： 10.1103/PHYSREVD.44.1933 　
THE CARRIER EFFECT ON THE CATALYTIC ACTIVITY OF SUPPORTED PALLADIUM CATALYST

Tadahiro Fujitani

NIPPON KAGAKU KAISHI　1991

DOI： 10.1246/NIKKASHI.1991.261 　
Preparation of Active Carbon from Vacuum Residual Oil.

FUJITANI Tadahiro, JAPPAR Nizamidin, ECHIGOYA Etsuro

Journal of The Japan Petroleum Institute　34　(6)　567-571　1991
Publisher: The Japan Petroleum Institute
DOI： 10.1627/jpi1958.34.567 　

ISSN： 0582-4664

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The preparation of active carbon from vacuum residual oil (VRO) was investigated using alkaline solution as an activator. The prepared active carbon was tested for measurements of specific surface area and pore size distribution. The liquid-phase adsorption ability of the active carbon was estimated using methylene blue and iodine.<br>The active carbon activated by sodium hydroxide (twice the weight of NaOH to VRO) at 500°C had a high specific surface area (1, 400m²/g) and a large adsorption ability for iodine (1, 200mg/g) as shown in Figs. 1 and 2. From X-ray diffraction patterns (Fig. 4) and scanning electron microscopy measurements (Fig. 5), the formation of graphitizing carbon was inhibited by use of sodium hydroxide as an activator. Further, both the specific surface area and the adsorption ability of the active carbon activated by alkali significant increased with the rise of activation temperature as shown in Figs. 6, 7 and 8. The pore sizes of the active carbons obtained at high activation temperatures were mostly about 20Å. It was proved that the growth of pores about 20Å were greatly promoted by activation with alkali at high temperatures. The activation mechanism was also discussed.
EFFECTS OF STARTING SOURCES ON THE STRUCTURE AND CATALYTIC ACTIVITY OF NICKEL-SUPPORTED ON SILICA

Tadahiro Fujitani

NIPPON KAGAKU KAISHI　1990

DOI： 10.1246/NIKKASHI.1990.12 　
EFFECTS OF NICKEL SOURCES ON THE STRUCTURE AND CATALYTIC ACTIVITY OF NICKEL SUPPORTED ON ALUMINA

Tadahiro Fujitani

NIPPON KAGAKU KAISHI　1990

DOI： 10.1246/NIKKASHI.1990.913 　
A LARGE SILICON DETECTOR TO MEASURE THE ANTIPROTON RANGE IN A LIQUID-HYDROGEN TARGET

Tadahiro Fujitani

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　1989

DOI： 10.1016/0168-9002(89)90623-2 　
ETA-PRODUCTION AND ETA'-PRODUCTION IN PBARP ANNIHILATION AT REST

Tadahiro Fujitani

PHYSICAL REVIEW D　1989

DOI： 10.1103/PHYSREVD.39.3227 　
The effect of starting source on the concentration distribution of nickel supported on alumina.

Fujitani Tadahiro, Ueki Osamu, Echigoya Etsuro

Bull. Chem. Soc. Jpn.　62　(8)　2753-2755　1989
Publisher: The Chemical Society of Japan
DOI： 10.1246/bcsj.62.2753 　

ISSN： 0009-2673

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The concentration profile and particle size of nickel supported on alumina spheres were easily controlled by varying the starting source materials of the impregnation solution. Further, the reduction behavior of nickel oxide supported on alumina was influenced by the starting nickel source material.
SEARCH FOR NARROW PEAKS IN INCLUSIVE PI-0 SPECTRA FROM PBAR-P ANNIHILATION AT REST

Tadahiro Fujitani

PHYSICS LETTERS B　1988

DOI： 10.1016/0370-2693(88)90501-1 　
ANTIPROTON-PROTON ANNIHILATION AT REST INTO PI-0M AND GAMMA-M WITH M = PHI, ETA-', OMEGA, RHO-0, ETA, AND PI-0

Tadahiro Fujitani

PHYSICAL REVIEW D　1988

DOI： 10.1103/PHYSREVD.38.2021 　
Disproportionation of propylene over supported tungsten oxide catalysts: Effects of pretreatment.:Effects of Pretreatment

FUJITANI Tadahiro, ECHIGOYA Etsuro

Journal of The Japan Petroleum Institute　31　(3)　233-238　1988
Publisher: The Japan Petroleum Institute
DOI： 10.1627/jpi1958.31.233 　

ISSN： 0582-4664

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The effects of the pretreatment of WO₃-Al₂O₃ and WO₃-SiO₂ catalysts with various gases and their physical properties on the disproportionation of propylene have been investigated with a flow type micro-reactor. The reaction was carried out in the temperature range from 300 to 600°C. Each catalyst was activated previously with dry nitrogen gas or dry hydrogen gas at 600°C, after preparing the catalysts by an impregnation method. The catalytic activity of WO₃-Al₂O₃ pretreated with hydrogen was very high at the beginning of the reaction time, but the activity decreased rapidly with the process time. Further, when the catalyst was pretreated with nitrogen, no catalytic activity was revealed at low reaction temperatures (Figs. 1, 2, 3). On the other hand, the activity of WO₃-SiO₂ catalyst pretreated with nitrogen was very high and remained constant at above 500°C of the reaction temperature. No promotional effects of hydrogen reduction of the catalyst on the reaction was observed at low reaction temperatures (Figs. 4, 5). It was found from the TPR (Temperature programmed reduction) behavior of the catalyst that the SiO₂ supported WO₃ was completely reduced to tungsten metal with hydrogen at 650°C, whereas the Al₂O₃ supported WO₃ was partially reduced to low valence state of tungsten under the same condition (Fig. 6). The results of X-ray diffraction pattern and also SEM indicated that large tungsten oxide crystallites were present over the silica support, although they were highly dispersed over the alumina support (Figs. 7, 8). From these results, it seems reasonable to assume that the WO₃-Al₂O₃ catalyst has two kinds of active centers for propylene disproportion. One is the low valence state tungsten (WO_x) produced by the hydrogen reduction of tungsten oxide and it shows high activity at low reaction temperature. The other is the lower valent tungsten such as produced by the adsorbed propylene at high reaction temperatures. On the other hand, the active centers of tungsten oxide supported on silica are produced by reduction with adsorbed propylene and they can be assumed to be identical with the active centers produced by the hydrogen reduction.
SEARCH FOR NARROW STATES BY DETECTION OF MONOCHROMATIC GAMMA-RAYS IN PBARP ANNIHILATION AT REST

Tadahiro Fujitani

PHYSICAL REVIEW D　1987

DOI： 10.1103/PHYSREVD.36.3321 　
Disproportionation of propylene over molybdenum oxides supported on alumina. Reduction behavior of the catalyst and promoter effects of Co or Fe.:Reduction Behavior of the Catalyst and Promoter Effects of Co or Fe

ECHIGOYA Etsuro, NOZAWA Isao, FUJITANI Tadahiro

Journal of The Japan Petroleum Institute　30　(5)　343-347　1987
Publisher: The Japan Petroleum Institute
DOI： 10.1627/jpi1958.30.343 　

ISSN： 0582-4664

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The disproportionation of propylene over molybdenum oxide supported on alumina was investigated on the effects of adding ternary metal oxide to increase catalytic activities. The reaction was carried out by means of an usual continuous flow type micro reactor. The reaction products were analyzed by gas chromatography, while the catalysts were prepared by impregnation method. The catalytic activity of molybdenum alumina was found to increase by addition of a small amount of ternary metal oxide such as Co or Fe (Figs. 3 and 6). It was found from the results of TPR (Temperature programmed reduction) behavior and X-ray diffraction pattern of the catalyst that the reduction of MoO₃ was promoted by the addition of a small amount of Co ions existing in the vicinity of Mo atoms, in the case of low content of Co (Co/Mo=1/8), but the formation of CoMoO₄ (Fig. 5) resulted in a lowering of the catalytic activity, in the case of high content of Co (Co/Mo=1/4). In the case of Fe, the reduction of MoO₃ was found to be accelerated by addition of a small amount of Fe ions at high temperature (Fig. 7), and, the catalyst obtained revealed high initial and constant activities, as shown in the pattern of changes in catalytic activity on the process time (Fig. 8).
THE LOW-ENERGY ANTIPROTON BEAM-K4 AT THE KEK 12 GEV PROTON SYNCHROTRON

Tadahiro Fujitani

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　1986

DOI： 10.1016/0168-9002(86)90211-1 　
SELF-SUPPORTING CYLINDRICAL MULTIWIRE PROPORTIONAL CHAMBERS WITH TWO-DIMENSIONAL READ-OUT

Tadahiro Fujitani

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　1986

DOI： 10.1016/0168-9002(86)90257-3 　
MODULARIZED NAI(TL) DETECTORS IN A HALF BARREL CONFIGURATION

Tadahiro Fujitani

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　1986

DOI： 10.1016/0168-9002(86)90258-5 　
SEARCH FOR NARROW STATES BY DETECTION OF MONOCHROMATIC GAMMA-RAYS IN PBARP ANNIHILATION AT REST

Tadahiro Fujitani

PHYSICS LETTERS B　1986

DOI： 10.1016/0370-2693(86)91060-9 　
PERFORMANCE OF A SCINTILLATOR GLASS CALORIMETER FOR 10.1-84.3 MEV PHOTONS

Tadahiro Fujitani

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　1985

DOI： 10.1016/0168-9002(85)90915-5 　
LIQUID-HYDROGEN AND DEUTERIUM TARGET FOR ANTIPROTON ANNIHILATION AT REST

Tadahiro Fujitani

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS　1985

DOI： 10.1143/JJAP.24.593

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Misc. 45

モノアリルアニリンの選択合成における酸化タングステン担持ジルコニア触媒の表面構造に関する検討

今喜裕, 鶴見翔太, 藤谷忠博

触媒討論会講演予稿集(CD-ROM)　129th　2022

ISSN： 2187-5928
Selective flow oxidation of alcohol to aldehyde using hydrogen peroxide

今喜裕, 中島拓哉, 矢田陽, 藤谷忠博, 小野澤俊也, 小林修, 小林修, 佐藤一彦

酸化反応討論会講演要旨集　53rd　2020
酸化タングステン担持触媒によるアニリンの脱水型モノアリル化反応の開発

今喜裕, 鶴見翔太, 藤谷忠博

触媒討論会討論会A予稿集(CD-ROM)　126th　2020

ISSN： 2758-3503
MoO₃/TiO₂触媒を用いた高効率アリル化反応における担体の効果

今喜裕, 石川理史, 中島拓哉, 鶴見翔太, 永島裕樹, 藤谷忠博, 上田渉

石油・石油化学討論会講演要旨　49th (Web)　2019
TS-1触媒によるアリルエーテルからグリシジルエーテルへの過酸化水素酸化反応

今喜裕, 横井俊之, 中島拓哉, 藤谷忠博, 佐藤一彦

触媒討論会討論会A予稿集(CD-ROM)　124th　2019

ISSN： 2758-3503
MoO₃担持チタニア触媒を鍵とする高選択的脱水型非対称アリルエーテルの合成法の開発

今喜裕, 矢田陽, 中村陽一, 藤谷忠博, 中島拓哉, 村山徹, 上田渉

石油学会年会講演要旨　61st　2018
酸化モリブデン担持触媒によるアミンのアリル化反応

今喜裕, 藤谷忠博, 中島拓哉, 村山徹, 上田渉

触媒討論会討論会A予稿集　122nd　2018

ISSN： 1343-9936
担持金ナノ粒子を用いた日本酒の老香成分の選択的吸着とそのメカニズム

刀禰美沙紀, 長谷川貴之, 山本裕典, 村山美乃, 石田玉青, 磯谷敦子, 藤井力, 本間徹生, 奥村光隆, 藤谷忠博, 徳永信

日本化学会春季年会講演予稿集(CD-ROM)　96th　2016
Production of gamma-valerolactone from biomass-derived levulinate esters over ZrO2 catalyst supported on mesoporous silica

Kuwahara Yasutaka, Fujitani Tadahiro, Yamashita Hiromi

Proceeding of Annual/Fall Meetings of the Japan Petroleum Institute　2016　42-42　2016
Publisher: The Japan Petroleum Institute
DOI： 10.11523/sekiyu.2016.0_42 　

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Levulinate esters, intermediate compounds produced by solvolysis of sugars, can be converted to γ-valerolactone (GVL) via a catalytic transfer hydrogenation and the subsequent intramolecular dealcoholization reactions. ZrO2 catalysts supported on mesoporous silicas exhibited superior catalytic activities and reusabilities compared with the conventional bulk ZrO2 catalyst. Based on several characterization techniques, activity-structure relationships and the associated reaction mechanism were investigated.
環境調和型セラミックス触媒材料の研究動向バイオマスから低級オレフィン転換のための触媒材料

高橋厚, 藤谷忠博

セラミックス　51　(1)　42-45　2016/01
Publisher: 日本セラミックス協会
ISSN： 0009-031X
9-2-4 Effect of Supports on the Ammonia Decomposition Reaction by the Ru Catalyst

FUJITANI Tadahiro, TAKAHASHI Atsushi

Proceedings of the Annual Conference of The Japan Institute of Energy　24　306-307　2015
Publisher: The Japan Institute of Energy
DOI： 10.20550/jietaikaiyoushi.24.0_306 　

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The decomposition of ammonia (NH_3) over Ru catalysts was investigated by using a flow reactor, temperature programed desorption and in-situ FT-IR. Ru/MgO catalyst prepared by coprecipitation method exhibits high catalytic activity. The NH_3 decomposition activity over Ru/MgO reached equilibrium conversion at the reaction temperature of 500℃. We found that the catalytic activity did not depend on the Ru surface area, but strongly depended on the binding energy of Ru-N.
The Role of Perimeter Interface between Au Particle and Metal Oxide Support in Au Catalysts

55　(4)　226-231　2013/08/01
Publisher: 触媒学会
ISSN： 0559-8958
ZSM-5(Ga)型ゼオライトを用いたエタノール転化反応

古本祥康, 津野地直, 井出裕介, 高橋厚, 藤谷忠博, 定金正洋, 佐野庸治

触媒討論会討論会A予稿集　108th　2011

ISSN： 1343-9936
Liquid phase oxidation of glycerol over Au-Pd nanoparticle catalyst

Mimura Naoki, Date Masakazu, Fujitani Tadahiro

Proceeding of Annual/Fall Meetings of the Japan Petroleum Institute　2011　179-179　2011
Publisher: The Japan Petroleum Institute
DOI： 10.11523/sekiyu.2011f.0.179.0 　

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Liquid phase oxidation of glycerol over Au-Pd nanoparticle catalysts prepared by ion exchange method in anion exchange resin was studied. Glyceric acid and tartoronic acid were main products in the oxidation. Also, nanoparticles with a diameter of about 2nm were found in the catalyst by transmission electron microscope observation.
Production of Lower Olefin from Bio-ethanol on Zeolite Catalysts

高橋厚, 藤谷忠博

ゼオライト　27　(4)　145-152　2010/12/10
Publisher: ゼオライト学会
DOI： 10.20731/zeoraito.27.4.145 　

ISSN： 0918-7774
Hydrogen Dissociation by Gold Clusters

FUJITANI Tadahiro, NAKAMURA Isao, AKITA Tomoki, OKUMURA Mitsutaka, HARUTA Masatake

52　(2)　143-145　2010/03/10
Publisher: 触媒学会
ISSN： 0559-8958
CATL 21-XAFS, FTIR, and UV/vis studies of reaction intermediates during direct propylene epoxidation using H2 and O2 over a Au/titanosilicate catalyst

S. Ted Oyama, Juan J. Bravo-Suarez, Jiqing Lu, Tadahiro Fujitani

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　238　2009/08

ISSN： 0065-7727
H-ZSM-5触媒によるエタノールならびにエチレンからのプロピレン合成反応

高橋厚, Xia Wei, Wu Qiang, Song Zhaoxia, 中村功, 島田広道, 藤谷忠博

化学工学会研究発表講演要旨集　2009　383-383　2009
Publisher: 公益社団法人化学工学会
DOI： 10.11491/scej.2009f.0.383.0 　
Selective transformation of ethanol to propylene over zeolite catalyst

Xia Wei, Takahashi Atsushi, Nakamura Isao, Shimada Hiromichi, Fujitani Tadahiro

2009　382-382　2009
Publisher: The Society of Chemical Engineers, Japan
DOI： 10.11491/scej.2009f.0.382.0 　
Mechanistic difference of methanol-to-olefins (MTO) and ethanol-to-olefins (ETO) reactions over H-ZSM-5

Wu Qiang, Xia Wei, Takahashi Atsushi, Nakamura Isao, Shimada Hiromichi, Fujitani Tadahiro

2009　384-384　2009
Publisher: The Society of Chemical Engineers, Japan
DOI： 10.11491/scej.2009f.0.384.0 　
Promotional effect of W and Ba on the activity of Ba/Ir/WO3-SiO2 catalyst for NO reduction with CO

高橋厚, 中村功, 羽田政明, 藤谷忠博, 浜田秀昭

触媒　49　(6)　512-514　2007/09/05
Publisher: 触媒学会
ISSN： 0559-8958
Novel directions in propylene epoxidation research: New catalysts and feedstocks, and the application of membranes

S. Ted Oyama, Juan J. Bravo-Suarez, Lu Jiqing, Xiaoming Zhang, Kyoko K. Bando, Tadahiro Fujitani

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　234　2007/08

ISSN： 0065-7727
Hydroperoxide intermediates in propylene epoxidation on gold/titanosilicate catalysts

S. Ted Oyama, Juan J. Bravo-Suarez, Jiqing Lu, Kyoko K. Bando, Tadahiro Fujitani

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　234　2007/08

ISSN： 0065-7727
イリジウム上でのCOによるNO選択還元におけるSO2の反応促進効果 (第96回触媒討論会B講演予稿)

藤谷忠博, 羽田政明, 中村功

触媒　47　(6)　383-385　2005/09
Publisher: 触媒学会
ISSN： 0559-8958
Site-selective deposition of Au nanoparticles on an islands on highly oriented pyrolytic graphite substrate using DNA-based method

Y Maeda, YY Maeda, T Okada, M Kodaka, T Fujitani, S Tsubota

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS　44　(7B)　5400-5402　2005/07

DOI： 10.1143/JJAP.44.5400 　

ISSN： 0021-4922
NO_x除去触媒の開発における表面研究

藤谷忠博, 中村功

ペトロテック = Petrotech　28　(4)　249-253　2005/04/01
Publisher: 石油学会
ISSN： 0386-2763
Direct decomposition of NO over alkali metal-doped cobalt oxide

HANEDA Masaaki, KINTAICHI Yoshiaki, NAKAMURA Isao, SASAKI Motoi, FUJITANI Tadahiro, HAMADA Hideaki

46　(6)　391-393　2004/09/10
Publisher: 触媒学会
ISSN： 0559-8958
担持パラジウム触媒上でのNO直接分解におけるパラジウム表面構造の影響

羽田政明, 金田一嘉昭, 中村功, 藤谷忠博, 浜田秀昭

触媒　44　(6)　378-380　2002/09/10
Publisher: 触媒学会
ISSN： 0559-8958
Structure-Dependent Kinetics for Synthesis and Decomposition of Formate Species over Cu(111) and Cu(110) Model Catalysts

NAKANO H, NAKAMURA I, FUJITANI T, NAKAMURA J

Journal of Physical Chemistry B　105　(7)　1355-1365　2001

DOI： 10.1021/jp002644z 　

ISSN： 1089-5647
Cu/ZnO系メタノール合成触媒におけるZnOの効果 - 活性点形成モデルかモルフォロジー効果か -

中村潤児, 崔永樹, 藤谷忠博

触媒　42　(6)　416-418　2000/09/10
Publisher: 触媒学会
ISSN： 0559-8958
24aW-9 Ab initio study of methanol synthesis over Cu surface(II)

Morikawa Y., Iwata K., Nakamura J., Fujitani T., Terakura K.

Meeting abstracts of the Physical Society of Japan　54　(2)　779-779　1999/09/03
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
Microkinetics of formate synthesis on Cu catalysts

FUJITANI Tadahiro, NAKAMURA Isao, NISHIMURA Hironobu, NAKANO Haruhisa, YATSU Takashi, UCHIJIMA Toshio, NAKAMURA Junji

41　(2)　113-115　1999/03/10
Publisher: 触媒学会
ISSN： 0559-8958
31p-S-9 First-principles study of methanol synthesis by hydrogenation of CO.2 over Zn deposited Cu surfaces

Iwata,K, Morikawa,Y, Nakamura,J, Fujitani,T, Terakura,K

Meeting abstracts of the Physical Society of Japan　54　(1)　343　1999/03
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
Methanol synthesis from CO2 and H-2 - Advancement of joint research between RITE and NIRE

M Saito, M Takeuchi, T Fujitani, J Toyir, S Luo, J Wu, K Ushikoshi, K Mori, T Watanabe

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　215　U435-U436　1998/04

ISSN： 0065-7727
Methanol Synthesis on Single-Crystal Copper surfaces at High Pressures

NAKAMURA,Junji, FUJITANI,Tadahiro, NAKAMURA,Isao, NISHIMURA,Hironobu, NAKANO,Haruhisa, YATSU,Takashi, UCHIJIMA,Toshio, WATANABE,Taiki

触媒　39　(2)　130-133　1997/03
Publisher: 触媒学会
ISSN： 0559-8958
メタノ-ル合成モデル触媒にみる活性点の機能

中村潤児, 藤谷忠博, 内島俊雄

表面　34　(9)　527-541　1996/09
Publisher: 広信社
ISSN： 0367-648X
Methanol Synthesis over Copper Catalysts

FUJITANI Tadahiro

38　(5)　324-325　1996/08/10

ISSN： 0559-8958
Methanol synthesis from CO2 and H-2 over Cu/ZnO-based multicomponent catalysts

M Saito, M Takeuchi, J Toyir, S Luo, J Wu, T Fujitani, T Watanabe, Y Kanai

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　212　121-FUEL　1996/08

ISSN： 0065-7727
STMによる表面化学反応過程の観察

藤谷忠博

触媒　38　(3)　251-253　1996/04/10

ISSN： 0559-8958
Model studies of methanol synthesis on copper catalysts Peer-reviewed

J Nakamura, Nakamura, I, T Uchijima, T Watanabe, T Fujitani

11TH INTERNATIONAL CONGRESS ON CATALYSIS - 40TH ANNIVERSARY, PTS A AND B　101　1389-1399　1996
Methanol synthesis over copper model catalysts - Detection of a small amount of active site -

NAKAMURA,Junji, FUJITANI,Tadahiro, NAKAMURA,Isao, MATSUDA,Tsukasa, UCHIJIMA,Toshio, WATANABE,Taiki

触媒　37　(6)　426-429　1995/09
Publisher: 触媒学会
ISSN： 0559-8958
Methanol synthesis over Zn-deposited Cu single crystal model catalysts

FUJITANI,Tadahiro, NAKAMURA,Isao, NAKAMURA,Junji, MATSUDA,Takashi, WATANABE,Taiki, SAITO,Masahiro, UCHIJIMA,Toshio

触媒 = Catalysts & Catalysis　37　(2)　116-119　1995/03
Publisher: 触媒学会
ISSN： 0559-8958
Cu/ZnO触媒上でのメタノ-ル合成における活性種とZnOの役割 (第74回触媒討論会講演予稿)

藤谷忠博

触媒　36　(6)　p492-495　1994/09
Publisher: 触媒学会
ISSN： 0559-8958
Cu/ZnO/ZrO2触媒上でのCO2の接触水素化によるメタノ-ル合成 (温暖化防止技術<特集>)

藤谷忠博

資源と環境　3　(2)　p117-122　1994/03
Publisher: 工業技術院資源環境技術総合研究所
ISSN： 0916-9997
Cu/ZnO/Al2O3触媒及びCu/ZnO/Ga2O3触媒上でのCO2の水素化によるメタノ-ル合成 (〔触媒学会〕第71回触媒討論会講演予稿)

藤谷忠博

触媒　35　(2)　p92-95　1993/03
Publisher: 触媒学会
ISSN： 0559-8958

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