Details of the Researcher

PHOTO

Liu Tengyi
Section
Advanced Institute for Materials Research
Job title
Specially Appointed Senior Assistant Professor(Research)
e-Rad No.
50987005

Research History 3

  • 2026/04 - Present
    Tohoku University　Advanced Institute for Materials Research　Specially-appointed Senior Assistant Professor

  • 2023/05 - 2026/03
    Tohoku University　Advanced Institute for Materials Research (WPI-AIMR)　Specially-appointed Assistant Professor

  • 2020/12 - 2023/04
    Osaka University　Specially-appointed Researcher

Professional Memberships 3

  • The Electrochemical Society

    2024 - Present

  • The Chemical Society of Japan

    2024 - Present

  • The Electrochemical Society of Japan

    2024 - Present

Research Interests 3

  • CO2 electroreduction

  • Electrochemistry

  • Energy

Awards 3

  1. Technical Committee Chair’s Award, FY2026

    2026/06　The Steel Foundation for Environmental Protection Technology　Development of High-Efficiency C₂H₄ Production Technology Using Metal Complex-Supported Hollow Copper Nanoparticle Catalysts

  2. The Outstanding Academic Paper Award at Beihang University (2 times)

    2021/05　Beihang University (Beijing, China)

  3. President’s Scholarship at Beihang University

    2018/09　Beihang University (Beijing, China)

Papers 20

  1. Unraveling Structure‐Dependent Performance of Cu–N–C Molecular Catalysts for Electrocatalytic CO2 Methanation International-journal Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Songbo Ye, Kosuke Ishibashi, Yutaro Hirai, Yasutaka Matsuo, Shimpei Ono, Hao Li, Hiroshi Yabu

    Small　22　(72)　e75041-e75041　2026/08/02

    Publisher: Wiley

    DOI： 10.1002/smll.75041 　

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    High-rate CH4 electrosynthesis offers a promising strategy for converting CO2 into energy-dense fuels compatible with existingnatural gas infrastructure. Cu–N–C molecular catalysts with well-defined Cu–N 4 sites show strong potential for CO2 -to-CH4 pro-duction, yet the role of the macrocyclic backbone remains unclear. Herein, we compare two representative Cu–N–C molecular cat-alysts, copper phthalocyanine (CuPc) and copper tetraphenylporphyrin (CuPr), to clarify how the macrocyclic backbone influencesCO2 -to-CH4 electrocatalysis. When supported on conductive carbon and integrated into gas-diffusion electrodes, CuPc markedlyoutperforms CuPr, achieving a CH 4 Faradaic efficiency of 79.5%, a high partial current density of −575 mA cm−2 , a mass activityof 19 166.7 A g−1 , and stable operation for over 80 h at −150 mA cm−2 . Characterization results suggest that the Pc-macrocyclicbackbone modulates the electronic structure of the Cu center and interfacial charge-transfer behavior, possibly through itsextended π-conjugated Pc-ring and bridge-N environment. Theoretical calculations reveal a favorable CH4 -forming pathway onthe CuPc/C model, with a lower free-energy barrier for the potential-determining step than that reported for CuPr, suggestingfacilitated CH4 formation. These findings indicate that the macrocyclic backbone can regulate reaction pathways and intermediateadsorption energetics, providing mechanistic insight and design guidance for molecular catalysts for CO2 -to-CH4 electroreduction.

  2. Breaking the Single-Molecule Paradigm: Multilayer Cobalt Phthalocyanine/Carbon Core-Shell Structure as the Superior Active Unit for CO2-to-CO Electroreduction International-journal Peer-reviewed

    Tengyi Liu, Di Zhang, Yue Chu, Keitaro Ohashi, Yutaro Hirai, Koju Ito, Kosuke Ishibashi, Yasutaka Matsuo, Junya Yoshida, Shimpei Ono, Kazuhide Kamiya, Hao Li, Hiroshi Yabu

    Applied Catalysis B: Environment and Energy　381　125852　2026/02/26

    Publisher: Elsevier BV

    DOI： 10.1016/j.apcatb.2025.125852 　

    ISSN： 0926-3373

  3. Ampere‐Level Electrosynthesis of CO via Well‐Defined Pyridinic‐N Incorporated Cobalt Phthalocyanine International-journal Invited Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Di Zhang, Yutaro Hirai, Kosuke Ishibashi, Yasutaka Matsuo, Junya Yoshida, Shimpei Ono, Hao Li, Hiroshi Yabu

    Small　21　(47)　e07824　2025/11/26

    Publisher: Wiley

    DOI： 10.1002/smll.202507824 　

    ISSN： 1613-6810

    eISSN： 1613-6829

  4. Surface Charge Transfer Enhanced Cobalt‐Phthalocyanine Crystals for Efficient CO2‐to‐CO Electroreduction with Large Current Density Exceeding 1000 mA cm−2 International-journal Peer-reviewed

    Tengyi Liu, Di Zhang, Yutaro Hirai, Koju Ito, Kosuke Ishibashi, Naoto Todoroki, Yasutaka Matsuo, Junya Yoshida, Shimpei Ono, Hao Li, Hiroshi Yabu

    Advanced Science　12　(23)　2501459　2025/06/23

    Publisher: Wiley

    DOI： 10.1002/advs.202501459 　

  5. A Tin Oxide‐Coated Copper Foam Hybridized with a Gas Diffusion Electrode for Efficient CO2 Reduction to Formate with a Current Density Exceeding 1 A cm−2 Peer-reviewed

    Tengyi Liu, Keitaro Ohashi, Kaito Nagita, Takashi Harada, Shuji Nakanishi, Kazuhide Kamiya

    Small　18　(50)　2205323　2022/12/15

    Publisher: Wiley

    DOI： 10.1002/smll.202205323 　

    ISSN： 1613-6810

    eISSN： 1613-6829

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    Abstract The electrochemical CO2 reduction reaction (CO2RR) is a promising strategy for closing the carbon cycle. Increasing the current density (  J) for CO2RR products is a critical requirement for the social implementation of this technology. Herein, nanoscale tin–oxide‐modified copper–oxide foam is hybridized with a carbon‐based gas‐diffusion electrode (GDE). Using the resultant electrode, the Jformate is increased to −1152 mA cm−2 at −1.2 V versus RHE in 1 m KOH, which is the highest value for CO2‐to‐formate electrolysis. The formate faradaic efficiency (FEformate) reaches ≈99% at −0.6 V versus RHE. The achievement of ultra‐high‐rate formate production is attributable to the following factors: i) homogeneously‐modified Sn atoms suppressing H2 evolution and ii) the hydrophobic carbon nanoparticles on GDEs penetrating the macroporous structure of the foam causing the increase in the thickness of triple‐phase interface. Additionally, the FEformate remains at ≈70% under a high J of −1.0 A cm−2 for more than 20 h.

  6. Janus Carbon Shells with Inner-Outer Functional Asymmetry Enable Local Proton Enrichment for Promoting CO2 Methanation International-journal Invited Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Wijak Yospanya, Songbo Ye, Yasutaka Matsuo, Shimpei Ono, Reiko Oda, Hao Li, Hiroshi Yabu

    New Carbon Materials　41　(3)　612-625　2026/06/26

    Publisher: Elsevier BV

    DOI： 10.1016/S1872-5805(26)61096-7 　

  7. Unveiling the Role of Crystallinity in Phthalocyanine Catalysts for Efficient CO₂ Electroreduction International-journal Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Di Zhang, Yutaro Hirai, Koju Ito, Hao Li, Hiroshi Yabu

    Electrochemical Society Meeting Abstracts　MA2026-01　(15)　1076-1076　2026/05/26

    Publisher: The Electrochemical Society

    DOI： 10.1149/ma2026-01151076mtgabs 　

    eISSN： 2151-2043

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    Electrochemical CO₂ reduction (ECR) provides a promising route for converting CO₂ into value-added fuels and chemicals, particularly when powered by renewable electricity—thereby contributing to atmospheric CO₂ mitigation and climate-change alleviation. [1–3] Phthalocyanines (Pcs) offer unique advantages, including diverse catalytic centers and tunable molecular architectures, enabling their rational design for targeting specific ECR products. [4,5] However, conventional chemical intuition suggests that only molecular-level dispersion enhances the ECR activity of Pcs, typically requiring elaborate carbon-supporting strategies that are both complex and time-intensive, thus limiting large-scale implementation. [6,7] Herein, we demonstrate that inducing crystallization within Pcs can significantly boost their ECR performance. In detail, we propose three crystallization strategies to obtain cobalt phthalocyanine (CoPc) catalysts with distinct crystalline characteristics by improving carbon-supporting and material-processing methods ( Figure 1 ). These include: ( S1 ) molecularly dispersed monolayer CoPc adsorbed on carbon; ( S2 ) crystallized CoPc deposited as a core–shell structure on Ketjenblack (KB); and ( S3 ) highly crystalline CoPc particles grown on carbon paper via a spray-growth method. When applied as cathodes for CO₂-to-CO conversion, both crystalline CoPc electrodes (S2 and S3) exhibit substantially enhanced activity compared with the monolayer CoPc electrode (S1), with performance directly correlated to their increasing crystallinity. Further investigation reveals that CoPc crystals adopt a preferential orientation and induce self-driven surface charge transfer (SCT), which synergistically enhances their intrinsic catalytic activity. Notably, the spray-grown crystalline electrode (S3) achieves an exceptional current density of −1034 mA cm⁻² and an ultrahigh mass activity of 5180 A g⁻¹ in 1.0 M KOH. It also demonstrates remarkable durability, maintaining −0.55 V vs RHE for 145 hours of continuous operation at −150 mA cm⁻². Density functional theory (DFT) calculations further show that even slight SCT effects significantly modulate the adsorption energies of key intermediates (*CO and *COOH), thereby accelerating reaction kinetics and improving overall catalytic efficiency. Moreover, the spray-grown electrode exhibits additional structural advantages—such as strong substrate adhesion and internally renewing active layers—features rarely observed in conventional carbon-supported catalysts. These results clearly establish crystallinity as a key structural parameter governing the intrinsic activity, charge-transport behavior, and operational robustness of Pc-based ECR catalysts. By elucidating how oriented crystalline domains and self-induced surface charge transfer synergistically enhance CO₂ reduction, this work provides fundamental insight into the structure–performance relationship of Pcs. Moreover, our scalable spray-growth approach offers a practical route for harnessing crystallinity as a design principle, paving the way for the rational development of next-generation Pc-based catalysts for efficient ECR. Figure 1. ( A ) Schematic illustration of three crystallization strategies for preparing cobalt phthalocyanine (CoPc) catalysts with distinct crystalline characteristics. ( B–D ) STEM images and corresponding elemental mapping of CoPc electrodes fabricated using the three crystallization strategies. ( E–F ) Comparison of key performance metrics of CoPc electrodes obtained from the three strategies with previously reported values in the literature. ( G–H ) Conceptual mechanism map and volcano plot of adsorption energies constructed from structural models representing the three crystallization strategies. Acknowledgements The authors gratefully acknowledge the support from the following funds: JSPS-KAKENHI (Nos. JP23H00301, JP23K13703, JP24K17741, JP24K23068), JST-MIRAI (No. JPMJMI22I5), the AIMR Fusion Research, the Hirose Foundation, the Steel Foundation for Environmental Protection Technology, and the TOKYO PRIZE Carbon Reduction. <p></p> Reference: [1] T. Liu, H. Yabu, Adv. Energy Sustain. Res. 2024 , 5 , 2300168. [2] T. Liu, H. Yabu, EcoEnergy 2024 , 2 , 419. [3] T. Liu, K. Ohashi, K. Nagita, T. Harada, S. Nakanishi, K. Kamiya, Small 2022 , 18 , 2205323. [4] T. Liu, X. Hou, D. Zhang, Y. Hirai, K. Ishibashi, Y. Matsuo, J. Yoshida, S. Ono, H. Li, H. Yabu, Small 2025 , 21 , e07824. [5] T. Liu, X. Hou, H. Yabu, ACS Electrochem. 2025 , 1 , 2317. [6] T. Liu, D. Zhang, Y. Chu, K. Ohashi, Y. Hirai, K. Ito, K. Ishibashi, Y. Matsuo, J. Yoshida, S. Ono, K. Kamiya, H. Li, H. Yabu, Appl. Catal. B Environ. 2026 , 381 , 125852. [7] T. Liu, D. Zhang, Y. Hirai, K. Ito, K. Ishibashi, N. Todoroki, Y. Matsuo, J. Yoshida, S. Ono, H. Li, H. Yabu, Adv. Sci. 2025 , 12 , 202501459. Figure 1 <p></p>

  8. Towards Activity Prediction: Unveiling the Role of Intra/Intermolecular Balance in Fe-N-C Catalysts for Hydrogen Evolution International-journal Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Kosuke Ishibashi, Yutaro Hirai, Shimpei Ono, Hiroshi Yabu

    Advanced Synthesis & Catalysis　368　(9)　e70464　2026/04/23

    Publisher: Wiley

    DOI： 10.1002/adsc.70464 　

  9. Strategically Advancing Semiconducting Phthalocyanines as High-Performance Electrocatalysts for Electrochemical CO2 Reduction International-journal Invited Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Di Zhang, Yutaro Hirai, Kosuke Ishibashi, Yasutaka Matsuo, Shimpei Ono, Hao Li, Hiroshi Yabu

    ACS Applied Electronic Materials　8　(6)　2187-2197　2026/03/23

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsaelm.5c02719 　

  10. Digital catalysis platform as a gateway to big data and AI-powered innovations in catalysis International-journal Invited Peer-reviewed

    Di Zhang, Zhixian Bao, Yue Chu, Zhongyuan Guo, Xue Jia, Qiuling Jiang, Heng Liu, Tengyi Liu, Tingyu Lu, Yiming Lu, Daksh Devang Shah, Yong Wang, Yuan Wang, Yuhang Wang, Songbo Ye, Siwei Ying, Zixun Yu, Linda Zhang, Shangqing Zhao, Hao Li

    Chem Catalysis　6　101775　2026

    DOI： 10.1016/j.checat.2026.101775 　

    ISSN： 2667-1093

  11. Metal Phthalocyanine Hybrid Catalysts for High-Performance Electrochemical CO 2 Reduction International-journal Invited Peer-reviewed

    Xiaofan Hou, Tengyi Liu, Hiroshi Yabu

    Electrochemical Society Meeting Abstracts　MA2026-01　(37)　1908-1908　2026

    Publisher: The Electrochemical Society

    DOI： 10.1149/ma2026-01371908mtgabs 　

    eISSN： 2151-2043

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    Molecular catalysts offer a promising approach for achieving high-performance electrochemical CO 2 reduction. In this work, we develop a metal phthalocyanine (M-Pc) hybrid catalyst featuring well-engineered molecular interfaces that promote efficient charge transfer and intermediate stabilization under reaction conditions, collectively enabling highly selective CO 2 reduction at industrially relevant current densities. By tuning catalyst loading and interfacial construction, the electrodes achieve near-quantitative Faradaic efficiency with partial current densities exceeding 300 mA cm -2 in a flow-cell configuration. This study demonstrates an effective strategy for designing high-performance molecular hybrid catalysts and highlights the critical role of controlled molecular–interface engineering in enabling efficient, high-rate electrochemical CO 2 reduction. Keywords: CO 2 electrochemical reduction, Metal phthalocyanine, Hybrid catalysts, High-performance electrocatalysis Introduction Electrochemical CO 2 reduction (CO 2 RR) provides a promising path for converting CO 2 into value-added chemicals under sustainable conditions. 1 Achieving industrially relevant production requires catalysts that are selective, electrically conductive, and stable at high current densities. Metal phthalocyanines (M-Pcs) are attractive molecular catalysts due to their well-defined metal–N 4 coordination and tunable electronic structures. However, their limited conductivity and stability restrict high-rate operation. 2 In this study, we introduce a hybrid catalyst platform in which M-Pcs are coupled with a suitably engineered solid support to form strongly interacting molecular–interface architectures. The optimized hybrid interface enhances charge transport and facilitates CO 2 activation, enabling efficient high-rate CO 2 RR. Experimental The precursor materials were washed, homogenized, and thermally treated to obtain compositionally uniform solid supports. Controlled heat treatment and activation yielded a stable support suitable for immobilizing M-Pcs. The M-Pcs were incorporated through solution-phase adsorption to form an M-Pc–based hybrid catalyst (denoted as M-Pcs/H), followed by mild drying, dispersion, and ball-milling to produce uniform catalyst inks. Gas-diffusion electrodes (GDE) were fabricated by ultrasonic spray-coating onto conductive substrates, resulting in well-distributed molecular hybrid interfaces ( Fig. 1a ). This scalable fabrication method ensures rapid charge transport, minimized agglomeration, and abundant accessible active sites suitable for high-current CO 2 electroreduction. Results and discussion Catalyst loading exerted a pronounced impact on both activity and selectivity ( Fig. 1b and c ). At low loading (~7 μg cm -2 , single spray pass), the product distribution was dominated by H 2 , yielding a Faradaic efficiency for H 2 (FE H2 ) of 99.3% with negligible CO formation. Increasing the loading gradually suppressed H 2 evolution and promoted CO production. A critical transition occurred at ~42 μg cm -2 , where CO became the predominant product, FE CO increased to 97.3% while FE H2 decreased to 1.95%, and the CO partial current density ( J CO ) surged to 273.5 mA cm -2 , accounting for nearly the entire total current. Further increasing the loading to 56–84 μg cm -2 resulted in a stabilized regime of near-exclusive CO formation, with J CO maintained in the 263.7–301.6 mA cm -2 range. In this regime, the total current density remained consistently high, confirming stable high-rate CO 2 reduction. Overall, the catalyst shifts from an H 2 -dominant regime at low loading to a CO-exclusive regime once sufficient interfacial coverage is established. The optimal loading window delivers total current densities ≥300 mA cm -2 with ≈90% CO selectivity, underscoring the pivotal role of loading-dependent interfacial construction in modulating charge transfer and enabling high-rate CO 2 electroreduction. Conclusions This work presents a scalable strategy for constructing high-performance CO 2 RR electrodes by integrating M-Pcs into a robust hybrid catalyst architecture. Strong molecular–interface coupling and the optimized catalytic environment collectively enable highly selective, high-current CO 2 reduction. By tuning catalyst loading and interfacial architecture, the system consistently achieves ≥300 mA cm -2 with near-unity selectivity. These results highlight the critical role of interface engineering in governing charge transfer and reaction pathways, and demonstrate the effectiveness of hybrid molecular catalysts for next-generation electrochemical CO 2 conversion technologies. <p></p> References Hou, X.; Cai, Y.; Zhang, D.; Li, L.; Zhang, X.; Zhu, Z.; Peng, L.; Liu, Y.; Qiao, J., 3D core–shell porous-structured Cu@Sn hybrid electrodes with unprecedented selective CO 2 -into-formate electroreduction achieving 100%. J. Mater. Chem. A 2019, 7 (7), 3197-3205. Liu, T.; Hou, X.; Zhang, D.; Hirai, Y.; Ishibashi, K.; Matsuo, Y.; Yoshida, J.; Ono, S.; Li, H.; Yabu, H., Ampere-Level Electrosynthesis of CO via Well-Defined Pyridinic-N Incorporated Cobalt Phthalocyanine. Small 2025 , e07824. <p></p> Figure 1 <p></p>

  12. Water-Activated Metal–Air Paper Batteries: Toward Realizing Safe, Sustainable, and High-Performance Wearable Sensing and Emergency Power Sources International-journal Invited Peer-reviewed

    Kosuke Ishibashi, Yutaro Hirai, Xiaofan Hou, Tengyi Liu, Hiroshi Yabu

    ACS Applied Electronic Materials　8　(7)　2703-2713　2026

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsaelm.5c02700 　

  13. Realizing Ampere-Level Electrochemical CO2 Reduction Using Gas Diffusion Electrodes International-journal Invited Peer-reviewed

    Tengyi Liu, Xiaofan Hou, Hiroshi Yabu

    ACS Electrochemistry　1　(11)　2317-2325　2025/10/29

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acselectrochem.5c00318 　

  14. Spray-Grown Crystalline Phthalocyanine-Based Electrode for High-Performance Electrochemical CO₂ Reduction Peer-reviewed

    Tengyi Liu, Di Zhang, Yutaro Hirai, Koju Ito, Hao Li, Hiroshi Yabu

    Electrochemical Society Meeting Abstracts　MA2025-02　(L01)　2564　2025/10/12

    Publisher: The Electrochemical Society

    DOI： 10.1149/ma2025-02532564mtgabs 　

    eISSN： 2151-2043

  15. Crystalline Formation Enhances Hydrogen Evolution Reaction Property of Copper Azaphthalocyanine on Carbon Electrodes International-journal Peer-reviewed

    Kosuke Ishibashi, Tengyi Liu, Yuya Ishizaki, Shusaku Nagano, Junya Yoshida, Shimpei Ono, Yasufumi Takahashi, Akichika Kumatani, Hiroshi Yabu

    ACS Applied Energy Materials　7　(22)　10466-10473　2024/11/08

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsaem.4c02102 　

    ISSN： 2574-0962

    eISSN： 2574-0962

  16. Copper nanoclusters derived from copper phthalocyanine as real active sites for CO2 electroreduction: Exploring size dependency on selectivity ‐ A mini review International-journal Invited Peer-reviewed

    Tengyi Liu, Hiroshi Yabu

    EcoEnergy　2　(3)　419-432　2024/08/09

    Publisher: Wiley

    DOI： 10.1002/ece2.57 　

    ISSN： 2835-9380

    eISSN： 2835-9399

  17. (Cover Article) Biomass‐Derived Electrocatalysts: Low‐Cost, Robust Materials for Sustainable Electrochemical Energy Conversion International-journal Invited Peer-reviewed

    Tengyi Liu, Hiroshi Yabu

    Advanced Energy and Sustainability Research　5　(1)　2300168　2023/10/06

    Publisher: Wiley

    DOI： 10.1002/aesr.202300168 　

    ISSN： 2699-9412

    eISSN： 2699-9412

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    Electrochemical energy conversion is an important strategy for addressing climate change and building a carbon‐neutral society. The use of inexpensive biomass resources to develop high‐performance catalytic materials that reduce the energy barrier of electrochemical reactions and minimize energy consumption has become a research hotspot for energy materials. Previous reviews have often categorized biomass‐derived catalysts by the biomass feedstocks used, but this classification method has major limitations because the roles of the same biomass material in different catalysts can vary. In this review, a new classification approach for biomass‐derived catalytic materials by focusing on the role of bio‐based materials in the overall catalyst system is proposed. The review is divided into three main sections, categorizing bio‐based materials by 1) the active components, 2) the carbon support, and 3) the entire catalyst. Additionally, a comprehensive summary is provided of catalytic materials at different scales, including the nanoscale, molecular scale, and single‐atom scale. It is hoped that this review will guide and inspire the future development of biomass‐derived electrocatalysts.

  18. Nickel foam supported Cr-doped NiCo2O4/FeOOH nanoneedle arrays as a high-performance bifunctional electrocatalyst for overall water splitting Peer-reviewed

    Tengyi Liu, Peng Diao

    Nano Research　13　(12)　3299-3309　2020/08/15

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s12274-020-3006-3 　

    ISSN： 1998-0124

    eISSN： 1998-0000

  19. Sulfur and selenium doped nickel chalcogenides as efficient and stable electrocatalysts for hydrogen evolution reaction: The importance of the dopant atoms in and beneath the surface Peer-reviewed

    Tengyi Liu, Peng Diao, Zheng Lin, Hailiang Wang

    Nano Energy　74　104787　2020/07/26

    Publisher: Elsevier BV

    DOI： 10.1016/j.nanoen.2020.104787 　

    ISSN： 2211-2855

  20. Photo-catalyzed surface hydrolysis of iridium(iii) ions on semiconductors: a facile method for the preparation of semiconductor/IrOx composite photoanodes toward oxygen evolution reaction Peer-reviewed

    Qingyong Wu, Di Xu, Ning Xue, Tengyi Liu, Min Xiang, Peng Diao

    Physical Chemistry Chemical Physics　19　(1)　145-154　2017/01/07

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/c6cp06821a 　

    ISSN： 1463-9076

    eISSN： 1463-9084

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    <p>Surface hydrolysis of Ir3+ induced by photo-generated holes on n-type semiconductors was developed to prepare semiconductor/IrOx composites for water splitting.</p>

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Misc. 7

  1. High-Rate Electrochemical Synthesis of Methane from CO2 Using a Low-Cost Blue Pigment Catalyst

    Tengyi Liu, Hiroshi Yabu

    2026/08/03

  2. AI-Powered Platform Lays the Foundation for a New Era of Catalyst Discovery

    2026/06/30

  3. Interview with Dr. Tengyi Liu featured on “WPI Forum”

    2026/04/30

  4. Pyridinic-N Incorporated Phthalocyanine for Efficient and Durable CO2 Electroreduction Invited

    Tengyi Liu, Hiroshi Yabu

    2025/10/15

  5. Layered Cobalt Catalyst Reimagines Pigment as a Pathway for Carbon Dioxide Recycling Invited

    Tengyi Liu, Hiroshi Yabu

    2025/09/01

  6. Turning Pollution into Fuel with Record-Breaking CO2-to-CO Conversion Rates Invited

    Tengyi Liu, Hiroshi Yabu

    2025/04/08

  7. Biomass-derived electrocatalysts: A leap towards sustainable energy conversion Invited

    Tengyi Liu, Hiroshi Yabu

    2025/02/25

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Presentations 6

  1. Unveiling the Role of Crystallinity in Phthalocyanine Catalysts for Efficient CO₂ Electroreduction

    Tengyi Liu, Xiaofan Hou, Di Zhang, Yutaro Hirai, Koju Ito, Hao Li, Hiroshi Yabu

    The 249 ECS Meeting　2026/05/27

  2. Self-Induced Surface Charge Transfer Enhances CO2 Electroreduction on Crystalline CoPc Electrodes

    Tengyi Liu, Di Zhang, Yutaro Hirai, Koju Ito, Hao Li, Hiroshi Yabu

    Pacifichem 2025　2025/12/16

  3. An Efficient and Durable 3D-Nickel Hydroxide Electrocatalyst for Oxygen Evolution Reaction in Alkaline Media

    Tengyi Liu, Q. Wu, N. Xue, C. Li, Q. Zhang, M. Xiang, P. Diao

    The 20th Romanian International Conference on Chemistry and Chemical Engineering　2017/09

  4. Spray-Grown Crystalline Phthalocyanine-Based Electrode for High-Performance Electrochemical CO₂ Reduction

    Tengyi Liu, Di Zhang, Yutaro Hirai, Koju Ito, Hao Li, Hiroshi Yabu

    The 248 ECS Meeting　2025/10

  5. Spray-Grown Crystalline Cobalt-Phthalocyanine on Carbon Paper as an Efficient Gas Diffusion Electrode for CO2-to-CO Electroreduction.

    Tengyi Liu, Di Zhang, Yutaro Hirai, Koju Ito, Hao Li, Hiroshi Yabu

    The International Symposium of CRCGP-MSSP-2024　2024/11

  6. A Metallic-Skeleton based Gas Diffusion Layer with Enhanced Triple-Phase Boundary for Highly Efficient CO2-to-Formate Electroreduction.

    Tengyi Liu, Hiroshi Yabu, Shuji Nakanishi, Kazuhide Kamiya

    The 8th International Conference on Materials Science & Engineering　2023/09

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Industrial Property Rights 1

  1. Patent: CO₂ Reduction Catalyst, Liquid Composition, Electrode, CO₂ Reduction Device, and Methane Synthesis Device

    Hiroshi Yabu, Tengyi Liu, Xiaofan Hou

    Property Type: Patent

Research Projects 8

  1. FY2026 The Iketani Science and Technology Foundation Competitive

    TENGYI LIU

    Offer Organization: Iketani Science and Technology Foundation

    2026/04 - 2028/03

  2. JSPS KAKENHI Early-Career Scientists, JP26K17934 Competitive

    TENGYI LIU

    Offer Organization: Japan Society for the Promotion of Science (JSPS)

    2026/04 - 2028/03

  3. The Steel Foundation for Environmental Protection Technology, Early-Career Scientists (FY2025) Competitive

    TENGYI LIU

    Offer Organization: The Steel Foundation for Environmental Protection Technology (JP)

    Category: Early-Career Scientists

    2025/04 - 2026/03

  4. JSPS KAKENHI Early-Career Scientists, JP24K17741 Competitive

    LIU TENGYI

    Offer Organization: Japan Society for the Promotion of Science (JSPS)

    Institution: Tohoku University

    2024/04 - 2026/03

  5. The Hirose Foundation, The 10th Research Grant

    TENGYI LIU

    Offer Organization: The Hirose Foundation (JP)

    Category: The 10th Research Grant

    2024/04 - 2026/03

  6. FY2025 Overseas Dispatch Program for Young Researchers Competitive

    Offer Organization: WPI-AIMR, Tohoku University

    2025/07 - 2025/12

  7. The AIMR Fusion Research Competitive

    TENGYI LIU

    Offer Organization: WPI-AIMR, Tohoku University

    Category: The AIMR Fusion Research

    2023/11 - 2024/03

  8. FY2023 Overseas Dispatch Program for Young Researchers Competitive

    TENGYI LIU

    Offer Organization: WPI-AIMR, Tohoku University

    2023/07 - 2023/12

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Media Coverage 9

  1. 安価な青色顔料触媒でCO2をガス燃料メタンに高効率変換する手法を実現 ―CO2のワンステップでの再燃料化技術に道

    科学技術インフラ

    2026/08/05

    Type: Internet

  2. Research Grant Achievement Award from Steel Foundation for Environmental Protection Technology

    Nikkan Sangyo Shimbun

    2026/06/03

    Type: Newspaper, magazine

  3. 安価な顔料による高速・高効率・高耐久な二酸化炭素から一酸化炭素への電気化学変換技術

    自動車技術(Web)

    2026/05/01

    Type: Internet

  4. Cutting-Edge Science on Historical Premises: Tengyi Liu at WPI-AIMR

    WPI Forum

    2026/04/30

    Type: Internet

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