Updated on 2023/12/23

写真a

 
PAN Zhenhua
 
Organization
Faculty of Science and Engineering Research Associate
Contact information
The inquiry by e-mail is 《here
External link

Degree

  • 博士(工学) ( 東京大学 )

  • 修士(工学) ( 華中科技大学(中国) )

Education

  • 2016.9
     

    The University of Tokyo   doctor course   completed

  • 2013.6
     

    華中科技大学(中国)   材料工学専攻   master course   completed

  • 2010.6
     

    華中科技大学(中国)   材料工学専攻   graduated

Research History

  • 2020.4 -  

    Chuo University   理工学部   助教

  • 2019.4 - 2020.3

    Shinshu University   先鋭材料研究所   研究員

  • 2018.10 - 2019.3

    The University of Tokyo   工学系研究科化学システム工学専攻   研究員

  • 2016.12 - 2018.9

    Yale University (U.S.)   Department of the Chemical & Environmental Engineering   Post-doc associate

  • 2016.10 - 2016.12

    The University of Tokyo   工学系研究科化学システム工学専攻   技術補佐員

Professional Memberships

  • 触媒討論会

  • The Chemical Society of Japan

Research Interests

  • photocatalyst

  • 半導体物理

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment  / Device related chemistry

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Catalyst and resource chemical process  / Catalyst/Resource chemical process

Papers

  • Investigation of the origin of the enhanced photoelectrochemical performance of gradient W-doped bismuth vanadate (BiVO4) photoanodes

    Jung Yoon Won, Zhenhua Pan, Yuriy Pihosh, Woon Yong Sohn

    International Journal of Hydrogen Energy   2024.2

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.ijhydene.2023.12.148

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  • Identification of the Contributing Factors to the Photoelectric Conversion Efficiency for Hematite Photoanodes by Using Machine Learning

    Takumi Idei, Yuya Nagai, Zhenhua Pan, Kenji Katayama

    ACS Applied Materials & Interfaces   2023.12

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsami.3c11295

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  • An Oxysulfide Photocatalyst Evolving Hydrogen with an Apparent Quantum Efficiency of 30 % under Visible Light

    Hiroaki Yoshida, Zhenhua Pan, Ryota Shoji, Vikas Nandal, Hiroyuki Matsuzaki, Kazuhiko Seki, Lihua Lin, Masanori Kaneko, Tsuyoshi Fukui, Koichi Yamashita, Tsuyoshi Takata, Takashi Hisatomi, Kazunari Domen

    Angewandte Chemie   2023.11

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/ange.202312938

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  • Identification of dominant factors contributing to photocurrent density of BiVO4 photoanodes using Machine learning

    Kazuki Kobayashi, Yuya Nagai, Zhenhua Pan, Kenji Katayama

    Journal of Photochemistry and Photobiology A: Chemistry   2023.6

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jphotochem.2023.114651

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  • Efficient visible-light-driven water oxidation by single-crystal Ta3N5 nanoparticles

    Zheng Wang, Jeongsuk Seo, Takashi Hisatomi, Mamiko Nakabayashi, Jiadong Xiao, Shanshan Chen, Lihua Lin, Zhenhua Pan, Mary Krause, Nick Yin, Gordon Smith, Naoya Shibata, Tsuyoshi Takata, Kazunari Domen

    Nano Research   16 ( 4 )   4562 - 4567   2023.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s12274-022-4732-5

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  • Promoted Utilization of Charge Carriers in La5Ti2Cu0.9Ag0.1O7S5-Based Photocatalyst Sheets for Efficient Z-Scheme Overall Water Splitting

    Shanshan Chen, Swarnava Nandy, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Zhenhua Pan, Qi Xiao, Zheng Wang, Lihua Lin, Song Sun, Kosaku Kato, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Fuxiang Zhang, Kazunari Domen

    ACS Catalysis   2023.3

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acscatal.2c06249

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  • Sequential modifications of the surface of hematite (α-Fe2O3) photoanodes with amorphous nickel iron oxide (NiFeOx) and cobalt phosphate (Co-Pi)

    Ji Hyun Kim, Na Kyung Lee, Hee Won Kim, Zhenhua Pan, Woon Yong Sohn

    Journal of Photochemistry and Photobiology A: Chemistry   437   114478 - 114478   2023.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier {BV}  

    DOI: 10.1016/j.jphotochem.2022.114478

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  • Roles of Surface States in Cocatalyst-Loaded Hematite Photoanodes for Water Oxidation

    Zhenhua Pan, Siyan Chen, Kenji Katayama

    The Journal of Physical Chemistry C   2023.2

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.3c00592

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  • Enhancement of photoelectrochemical performance of Bismuth vanadate (BiVO4)-Based photoanode by building phase-junction configurations

    Asuka Minato, Zhenhua Pan, Kenji Katayama, Woon Yong Sohn

    Journal of Photochemistry and Photobiology A: Chemistry   434   114252 - 114252   2023.1

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.jphotochem.2022.114252

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  • Convolutional neural network prediction of the photocurrent–voltage curve directly from scanning electron microscopy images

    Yuta Hayashi, Yuya Nagai, Zhenhua Pan, Kenji Katayama

    Journal of Materials Chemistry A   2023

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D3TA05282F

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  • Zr-doped BaTaO2N photocatalyst modified with Na–Pt cocatalyst for efficient hydrogen evolution and Z-scheme water splitting

    Huihui Li, Junie Jhon Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Jiadong Xiao, Xiaoping Tao, zhenhua Pan, Wenpeng Li, Shanshan Chen, Zheng Wang, Naoya Shibata, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

    EES Catalysis   1 ( 1 )   26 - 35   2023

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry ({RSC})  

    <jats:p>Detailed investigation of photocatalysts, cocatalysts and redox mediators provides a Z-scheme overall water splitting system operating under long-wavelength visible light.</jats:p>

    DOI: 10.1039/d2ey00031h

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  • Co-doping of a La5Ti2Cu0.9Ag0.1O7S5 photocatalyst (λ < 700 nm) with Ga and Al to enhance photocatalytic H2 evolution

    Xiaojun Wang, Zhenhua Pan, Junie Jhon M. Vequizo, Takashi Hisatomi, Swarnava Nandy, Tomohiro Higashi, Lihua Lin, Jiadong Xiao, Tsuyoshi Takata, Akira Yamakata, Wei Yan, Kazunari Domen

    Chemical Communications   2023

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D3CC01863F

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  • Local Charge Carrier Dynamics for Photocatalytic Materials Using Pattern-Illumination Time-Resolved Phase Microscopy

    Kenji Katayama, Kei Kawaguchi, Yuta Egawa, Zhenhua Pan

    Energies   15 ( 24 )   9578 - 9578   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:{MDPI} {AG}  

    <jats:p>We showed two demonstrations of the local charge carrier dynamics measurements of photocatalytic materials using our recently developed time-resolved phase-contrast microscopic technique combined with the clustering analyses. In this microscopic time-resolved technique, we observed the charge carrier dynamics via the refractive index change instead of the luminescence or absorption change, where we could often observe non-radiative charge carrier processes such as charge carrier trapping and non-radiative relaxation. By the clustering analyses of all the pixel-by-pixel responses, we could extract various different charge carrier dynamics because photocatalytic materials have inhomogeneity on surfaces and the charge carrier behavior depends on the local structure and species. Even for typical photocatalytic materials, titanium oxide and hematite, we could recognize various charge carrier dynamics, which cannot be differentiated by the general fitting procedure for the averaged time response. We could categorize the surface-trapped charge carriers (holes and electrons) and bulk carriers in the nanosecond to millisecond order, which indicates that this analytical procedure will play an important role in understanding the charge carrier dynamics for various photocatalytic materials.</jats:p>

    DOI: 10.3390/en15249578

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  • A general interfacial-energetics-tuning strategy for enhanced artificial photosynthesis

    Tian Liu, Zhenhua Pan, Kosaku Kato, Junie Jhon M. Vequizo, Rito Yanagi, Xiaoshan Zheng, Weilai Yu, Akira Yamakata, Baoliang Chen, Shu Hu, Kenji Katayama, Chiheng Chu

    Nature Communications   2022.12

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/s41467-022-35502-z

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  • Elucidating the Role of Surface Energetics on Charge Separation during Photoelectrochemical Water Splitting

    Zhenhua Pan, Vikas Nandal, Yuriy Pihosh, Tomohiro Higashi, Tian Liu, Jason A. Röhr, Kazuhiko Seki, Chiheng Chu, Kazunari Domen, Kenji Katayama

    ACS Catalysis   2022.12

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acscatal.2c04225

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  • Effect of CoOx and Rh Cocatalysts on Local Charge Carrier Dynamics of BiVO4 Particles by Pattern-Illumination Time-Resolved Phase Microscopy

    Tatsuya Chugenji, Zhenhua Pan, Kenji Katayama

    The Journal of Physical Chemistry C   2022.11

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.2c06834

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  • Advances and challenges in developing cocatalysts for photocatalytic conversion of carbon dioxide to fuels

    Qian Wang, Zhenhua Pan

    Nano Research   15 ( 12 )   10090 - 10109   2022.8

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s12274-022-4705-8

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    Other Link: https://link.springer.com/article/10.1007/s12274-022-4705-8/fulltext.html

  • One-Step Excitation Overall Water Splitting over a Modified Mg-Doped BaTaO2N Photocatalyst

    Huihui Li, Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Zhenhua Pan, Naoya Shibata, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

    ACS CATALYSIS   12 ( 16 )   10179 - 10185   2022.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:AMER CHEMICAL SOC  

    BaTaO2N responds to visible light up to 650 nm and exhibits photocatalytic activity during the hydrogen and oxygen evolution reactions. However, the difficulty in promoting both processes simultaneously hinders the realization of overall water splitting (OWS) over this material. Herein, we demonstrate the activation and stabilization of BaTaO2N-based photocatalysts for visible-light-driven OWS by combining flux-assisted nitridation with Mg doping and co-loading of Cr2O3/(Na)Rh and IrO2 co-catalysts. RbCl-assisted nitridation produced single-crystal BaTaO2N particles doped with Mg and so promoted charge transfer to the co-catalysts. The coloading of Cr2O3/(Na)Rh and IrO2 at moderate temperatures as co-catalysts to promote the hydrogen and oxygen evolution reactions, respectively, allowed the BaTaO2N photocatalyst to evolve hydrogen and oxygen simultaneously from water. This work highlights the importance of carefully tuning semiconducting and catalytic properties to realize effective charge transfer when preparing narrow-bandgap oxynitrides for OWS.

    DOI: 10.1021/acscatal.2c0239410179

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  • Physical properties and photocatalytic activity of pulverized Ga-doped La5Ti2Cu0.9Ag0.1O7S5 powder

    Xiaojun Wang, Qi Xiao, Zhenhua Pan, Swarnava Nandy, Xiaoping Tao, Xizhuang Liang, Lihua Lin, Junie Jhon M. Vequizo, Daling Lu, Takashi Hisatomi, Wei Yan, Tsuyoshi Takata, Kazunari Domen

    Materials Letters   319   132290 - 132290   2022.7

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.matlet.2022.132290

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  • Tailoring the morphology of hafnium zirconium oxide (Hf 0.6 Zr 0.4 O <scp> 2 </scp> ) as a cocatalyst for photoelectrochemical water oxidation over a hematite ( <scp> α‐Fe 2 O 3 </scp> ) photoanode

    Hee Won Kim, Jung Yoon Won, Zhenhua Pan, Woon Yong Sohn

    Bulletin of the Korean Chemical Society   43 ( 6 )   876 - 881   2022.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/bkcs.12538

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  • Microscopic Interfacial Charge Transfer at Perovskite/Hole Transport Layer Interfaces Clarified Using Pattern-Illumination Time-Resolved Phase Microscopy

    Tatsuya Chugenji, Zhenhua Pan, Kenji Katayama

    The Journal of Physical Chemistry C   126 ( 17 )   7548 - 7555   2022.4

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.jpcc.2c00954

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  • BiVO4-Dotted WO3 Photoanode with an Inverse Opal Underlayer for Photoelectrochemical Water Splitting

    Yuhei Taga, Zhenhua Pan, Kenji Katayama, Woon Yong Sohn

    ACS Applied Energy Materials   5 ( 5 )   5750 - 5755   2022.4

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaem.2c00075

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  • Overall photosynthesis of H2O2 by an inorganic semiconductor

    Tian Liu, Zhenhua Pan, Junie Jhon M. Vequizo, Kosaku Kato, Binbin Wu, Akira Yamakata, Kenji Katayama, Baoliang Chen, Chiheng Chu, Kazunari Domen

    Nature Communications   13 ( 1 )   2022.2

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    Artificial photosynthesis of H2O2 using earth-abundant water and oxygen is a promising approach to achieve scalable and cost-effective solar fuel production. Recent studies on this topic have made significant progress, yet are mainly focused on using  organic polymers. This set of photocatalysts is susceptible to potent oxidants (e.g. hydroxyl radical) that are inevitably formed during H2O2 generation. Here, we report an inorganic Mo-doped faceted BiVO4 (Mo:BiVO4) system that is resistant to radical oxidation and exhibits a high overall H2O2 photosynthesis efficiency among inorganic photocatalysts, with an apparent quantum yield of 1.2% and a solar-to-chemical conversion efficiency of 0.29% at full spectrum, as well as an apparent quantum yield of 5.8% at 420 nm. The surface-reaction kinetics and selectivity of Mo:BiVO4 were tuned by precisely loading CoOx and Pd on {110} and {010} facets, respectively. Time-resolved spectroscopic investigations of photocarriers suggest that depositing select cocatalysts on distinct facet tailored the interfacial energetics between {110} and {010} facets and enhanced charge separation in Mo:BiVO4, therefore overcoming a key challenge in developing efficient inorganic photocatalysts. The promising H2O2 generation efficiency achieved by delicate design of catalyst spatial and electronic structures sheds light on applying robust inorganic particulate photocatalysts to artificial photosynthesis of H2O2.

    DOI: 10.1038/s41467-022-28686-x

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    Other Link: https://www.nature.com/articles/s41467-022-28686-x

  • Local charge carrier dynamics of a particulate Ga-doped La5Ti2Cu0.9Ag0.1O7S5 photocatalyst and the impact of Rh cocatalysts

    Tatsuya Chugenji, Zhenhua Pan, Vikas Nandal, Kazuhiko Seki, Kazunari Domen, Kenji Katayama

    Physical Chemistry Chemical Physics   24 ( 29 )   17485 - 17495   2022

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    Photocatalytic charge carriers (electrons, holes, electrons at cocatalysts) were selectively separated based on the charge carrier dynamics.

    DOI: 10.1039/d2cp02808e

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  • Hematite photoanodes prepared by particle transfer for photoelectrochemical water splitting

    Zhenhua Pan, Rito Yanagi, Tomohiro Higashi, Yuriy Pihosh, Shu Hu, Kenji Katayama

    Sustainable Energy & Fuels   6 ( 8 )   2067 - 2074   2022

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    α-Fe2O3 particles were prepared by a solution-derived method with annealing at ∼800 °C. By particle transfer, the particles were applied to photoanodes for photoelectrochemical water splitting.

    DOI: 10.1039/d2se00145d

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  • Heterogeneous doping of visible-light-responsive Y2Ti2O5S2 for enhanced hydrogen evolution

    Hiroaki Yoshida, Zhenhua Pan, Ryota Shoji, Vikas Nandal, Hiroyuki Matsuzaki, Kazuhiko Seki, Takashi Hisatomi, Kazunari Domen

    Journal of Materials Chemistry A   2022

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D2TA06895H

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  • Chapter 10. Applications of Metal Oxide Layers on Particulate Photocatalysts for Water Splitting

    Z. Pan, T. Hisatomi, K. Domen

    Energy and Environment Series   265 - 297   2022

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    Publisher:Royal Society of Chemistry  

    DOI: 10.1039/9781839163708-00265

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  • Charge Separation in Photocatalysts: Mechanisms, Physical Parameters, and Design Principles

    Rito Yanagi, Tianshuo Zhao, Devan Solanki, Zhenhua Pan, Shu Hu

    ACS Energy Letters   7 ( 1 )   432 - 452   2021.12

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsenergylett.1c02516

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  • Surface Modifications of (ZnSe)0.5(CuGa2.5Se4.25)0.5 to Promote Photocatalytic Z-Scheme Overall Water Splitting

    Shanshan Chen, Junie Jhon M. Vequizo, Zhenhua Pan, Takashi Hisatomi, Mamiko Nakabayashi, Lihua Lin, Zheng Wang, Kosaku Kato, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Taro Yamada, Kazunari Domen

    Journal of the American Chemical Society   143 ( 28 )   10633 - 10641   2021.7

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society ({ACS})  

    DOI: 10.1021/jacs.1c03555

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  • Simultaneously Tuning the Defects and Surface Properties of Ta3N5 Nanoparticles by Mg–Zr Codoping for Significantly Accelerated Photocatalytic H2 Evolution

    Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Jabor Rabeah, Mamiko Nakabayashi, Zheng Wang, Qi Xiao, Huihui Li, Zhenhua Pan, Mary Krause, Nick Yin, Gordon Smith, Naoya Shibata, Angelika Brückner, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

    Journal of the American Chemical Society   143 ( 27 )   10059 - 10064   2021.7

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society ({ACS})  

    DOI: 10.1021/jacs.1c04861

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  • Synthesis of a Ga-doped La5Ti2Cu0.9Ag0.1O7S5 photocatalyst by thermal sulfidation for hydrogen evolution under visible light

    Zhenhua Pan, Qi Xiao, Shanshan Chen, Zheng Wang, Lihua Lin, Mamiko Nakabayashi, Naoya Shibata, Tsuyoshi Takata, Takashi Hisatomi, Kazunari Domen

    Journal of Catalysis   399   230 - 236   2021.7

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.jcat.2021.05.015

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  • Enhanced photoelectrochemical water splitting efficiency of hematite (α-Fe2O3)-Based photoelectrode by the introduction of maghemite (γ-Fe2O3) nanoparticles

    Tsuyoshi Tokubuchi, Ramis Imran Arbi, Pan Zhenhua, Kenji Katayama, Ayse Turak, Woon Yong Sohn

    Journal of Photochemistry and Photobiology A: Chemistry   410   113179 - 113179   2021.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier {BV}  

    DOI: 10.1016/j.jphotochem.2021.113179

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  • Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting

    Zheng Wang, Ying Luo, Takashi Hisatomi, Junie Jhon M. Vequizo, Sayaka Suzuki, Shanshan Chen, Mamiko Nakabayashi, Lihua Lin, Zhenhua Pan, Nobuko Kariya, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Katsuya Teshima, Kazunari Domen

    Nature Communications   12 ( 1 )   2021.2

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    Oxynitride photocatalysts hold promise for renewable solar hydrogen production via water splitting owing to their intense visible light absorption. Cocatalyst loading is essential for activation of such oxynitride photocatalysts. However, cocatalyst nanoparticles form aggregates and exhibit weak interaction with photocatalysts, which prevents eliciting their intrinsic photocatalytic performance. Here, we demonstrate efficient utilization of photoexcited electrons in a single-crystalline particulate BaTaO2N photocatalyst prepared with the assistance of RbCl flux for H2 evolution reactions via sequential decoration of Pt cocatalyst by impregnation-reduction followed by site-selective photodeposition. The Pt-loaded BaTaO2N photocatalyst evolves H2 over 100 times more efficiently than before, with an apparent quantum yield of 6.8% at the wavelength of 420 nm, from a methanol aqueous solution, and a solar-to-hydrogen energy conversion efficiency of 0.24% in Z-scheme water splitting. Enabling uniform dispersion and intimate contact of cocatalyst nanoparticles on single-crystalline narrow-bandgap particulate photocatalysts is a key to efficient solar-to-chemical energy conversion.

    DOI: 10.1038/s41467-021-21284-3

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    Other Link: https://www.nature.com/articles/s41467-021-21284-3

  • Electrochemical and Photoelectrochemical Water Oxidation for Hydrogen Peroxide Production

    Yudong Xue, Yunting Wang, Zhenhua Pan, Kazuhiro Sayama

    Angewandte Chemie   133 ( 19 )   10561 - 10572   2021.1

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Abstract

    Hydrogen peroxide (H2O2), as a green fuel and oxidant, has drawn increasing attention in the energy and environmental research. Compared with the traditional anthraquinone process, the electrochemical (EC) and photoelectrochemical (PEC) syntheses of H2O2 are cost‐effective and environmentally friendly. In order to construct membraneless EC/PEC devices for the full H2O2 synthesis, anodic H2O2 production by water oxidation, which is less developed than cathodic H2O2 generation, is highly desirable. Here, we review recent developments for the EC/PEC H2O2 production by water oxidation, including fundamental aspects, benchmarking activity evaluation, material/catalyst selection, and strategies for increasing selectivity, efficiency, and accumulation. Furthermore, we discuss the challenges and outlook of water oxidation for H2O2 production, especially device‐level development, accumulation and stability, and industrial applications. Our review is intended to stimulate studies further improving EC/PEC H2O2 production.

    DOI: 10.1002/ange.202011215

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    Other Link: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ange.202011215

  • Synthesis of Y2Ti2O5S2 by thermal sulfidation for photocatalytic water oxidation and reduction under visible light irradiation

    Zhenhua Pan, Hiroaki Yoshida, Lihua Lin, Qi Xiao, Mamiko Nakabayashi, Naoya Shibata, Tsuyoshi Takata, Takashi Hisatomi, Kazunari Domen

    Research on Chemical Intermediates   47 ( 1 )   225 - 234   2021.1

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s11164-020-04329-y

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    Other Link: http://link.springer.com/article/10.1007/s11164-020-04329-y/fulltext.html

  • Cocatalyst engineering of a narrow bandgap Ga-La5Ti2Cu0.9Ag0.1O7S5 photocatalyst towards effectively enhanced water splitting

    Qi Xiao, Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Shanshan Chen, Zhenhua Pan, Lihua Lin, Naoya Shibata, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

    Journal of Materials Chemistry A   9 ( 48 )   27485 - 27492   2021

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    The hydrogen evolution activity of Ga-doped La5Ti2Cu0.9Ag0.1O7S5 (Ga-LTCA) was boosted by loading a Rh cocatalyst having uniform dispersion and intimate contact.

    DOI: 10.1039/d1ta08770c

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  • Spatially separating redox centers on 2D carbon nitride with cobalt single atom for photocatalytic H 2 O 2 production

    Chiheng Chu, Qianhong Zhu, Zhenhua Pan, Srishti Gupta, Dahong Huang, Yonghua Du, Seunghyun Weon, Yueshen Wu, Christopher Muhich, Eli Stavitski, Kazunari Domen, Jae-Hong Kim

    Proceedings of the National Academy of Sciences   117 ( 12 )   6376 - 6382   2020.3

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    Publishing type:Research paper (scientific journal)   Publisher:Proceedings of the National Academy of Sciences  

    Significance

    Photocatalysts frequently require simultaneous loading of oxidative and reductive cocatalysts to achieve both efficient half-reactions within a single material. Nevertheless, unregulated loading and distribution of two cocatalysts will result in direct contact between oxidation and reduction centers, leading to detrimental charge recombination. This research presents a center/edge approach to load two redox cocatalysts with controlled physical separation in atomistic scale using single-atom architecture. This spatial separation is critical for enhancing surface charge separation and achieving efficient H 2 O 2 production. We report that redox cocatalysts are spatially separated on a two-dimensional (2D) photocatalyst, which opens an approach for achieving both efficient oxidation and reduction reactions on 2D photocatalysts.

    DOI: 10.1073/pnas.1913403117

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    Other Link: https://pnas.org/doi/pdf/10.1073/pnas.1913403117

  • Metal-organic frameworks derived cobalt encapsulated in porous nitrogen-doped carbon nanostructure towards highly efficient and durable oxygen reduction reaction electrocatalysis

    Yudong Xue, Yunting Wang, Zhenhua Pan, Chunhui Zhang

    Journal of Power Sources   451   227747 - 227747   2020.3

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.jpowsour.2020.227747

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  • Mutually-dependent kinetics and energetics of photocatalyst/co-catalyst/two-redox liquid junctions

    Zhenhua Pan, Rito Yanagi, Qian Wang, Xin Shen, Qianhong Zhu, Yudong Xue, Jason A. Röhr, Takashi Hisatomi, Kazunari Domen, Shu Hu

    Energy & Environmental Science   13 ( 1 )   162 - 173   2020

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    <p>We elucidate the multi-redox charge-transfer kinetics across a photocatalyst/(co-catalyst)/water interface and reveal the dynamic interplay between local energetics and kinetics.</p>

    DOI: 10.1039/c9ee02910a

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  • Cathodic Hydrogen Peroxide Electrosynthesis Using Anthraquinone Modified Carbon Nitride on Gas Diffusion Electrode

    Qianhong Zhu, Zhenhua Pan, Shu Hu, Jae-Hong Kim

    ACS Applied Energy Materials   2 ( 11 )   7972 - 7979   2019.11

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaem.9b01445

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  • Metal selenides for photocatalytic Z-scheme pure water splitting mediated by reduced graphene oxide

    Shanshan Chen, Takashi Hisatomi, Guijun Ma, Zheng Wang, Zhenhua Pan, Tsuyoshi Takata, Kazunari Domen

    Chinese Journal of Catalysis   40 ( 11 )   1668 - 1672   2019.11

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/s1872-2067(19)63326-7

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  • Oxysulfide photocatalyst for visible-light-driven overall water splitting

    Qian Wang, Mamiko Nakabayashi, Takashi Hisatomi, Song Sun, Seiji Akiyama, Zheng Wang, Zhenhua Pan, Xiong Xiao, Tomoaki Watanabe, Taro Yamada, Naoya Shibata, Tsuyoshi Takata, Kazunari Domen

    Nature Materials   18 ( 8 )   827 - 832   2019.6

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1038/s41563-019-0399-z

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    Other Link: https://www.nature.com/articles/s41563-019-0399-z

  • Metal selenide photocatalysts for visible-light-driven Z-scheme pure water splitting

    Shanshan Chen, Guijun Ma, Qian Wang, Song Sun, Takashi Hisatomi, Tomohiro Higashi, Zheng Wang, Mamiko Nakabayashi, Naoya Shibata, Zhenhua Pan, Toshio Hayashi, Tsutomu Minegishi, Tsuyoshi Takata, Kazunari Domen

    Journal of Materials Chemistry A   7 ( 13 )   7415 - 7422   2019

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    <p>Metal selenides with narrow bandgaps (480–750 nm) are shown to be applicable to stable photocatalytic Z-scheme pure water splitting.</p>

    DOI: 10.1039/c9ta00768g

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  • Elucidating charge separation in particulate photocatalysts using nearly intrinsic semiconductors with small asymmetric band bending

    Zhenhua Pan, Jason A. Röhr, Zuyang Ye, Zachary S. Fishman, Qianhong Zhu, Xin Shen, Shu Hu

    Sustainable Energy & Fuels   3 ( 3 )   850 - 864   2019

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    <p>Small asymmetric electric fields in photocatalysts created by carrier-selective contacts provide sufficient driving force for charge separation.</p>

    DOI: 10.1039/c9se00036d

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  • Hydrogen evolution activity tuning via two-dimensional electron accumulation at buried interfaces

    Yudong Xue, Zachary S. Fishman, Yunting Wang, Zhenhua Pan, Xin Shen, Rito Yanagi, Gregory S. Hutchings, Mingzhao Liu, Shili Zheng, Yi Zhang, Eric I. Altman, Shu Hu

    Journal of Materials Chemistry A   7 ( 36 )   20696 - 20705   2019

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    Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    <p>The buried electrocatalytic interfaces between bimetallic sulfide nanosheets and ALD TiO2 coatings achieved remarkable HER activity improvement, offering a general strategy for improving the charge-transfer kinetics of an electrocatalytic system.</p>

    DOI: 10.1039/c9ta07123g

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  • Electronic Tuning of Metal Nanoparticles for Highly Efficient Photocatalytic Hydrogen Peroxide Production

    Chiheng Chu, Dahong Huang, Qianhong Zhu, Eli Stavitski, Jacob A. Spies, Zhenhua Pan, Jing Mao, Huolin L. Xin, Charles A. Schmuttenmaer, Shu Hu, Jae-Hong Kim

    ACS Catalysis   9 ( 1 )   626 - 631   2018.12

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acscatal.8b03738

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  • Stable Water Oxidation in Acid Using Manganese-Modified TiO2 Protective Coatings Reviewed

    Georges Siddiqi, Zhenya Luo, Yujun Xie, Zhenhua Pan, Qianhong Zhu, Jason A. Röhr, Judy J. Cha, Shu Hu

    ACS Applied Materials & Interfaces   10 ( 22 )   18805 - 18815   2018.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsami.8b05323

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  • Tunable nano-interfaces between MnOx and layered double hydroxides boost oxygen evolving electrocatalysis

    Yudong Xue, Zachary S. Fishman, Jason A. Röhr, Zhenhua Pan, Yunting Wang, Chunhui Zhang, Shili Zheng, Yi Zhang, Shu Hu

    Journal of Materials Chemistry A   6 ( 44 )   21918 - 21926   2018

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry ({RSC})  

    <p>Nano-interfaces between MnOx islands and NiFe layered double hydroxide (LDH) nanosheets were tuned using atomic layer deposition thereby enhancing oxygen evolution activity.</p>

    DOI: 10.1039/c8ta07508e

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  • Particulate Photocatalyst Sheets Based on Carbon Conductor Layer for Efficient Z-Scheme Pure-Water Splitting at Ambient Pressure

    Qian Wang, Takashi Hisatomi, Yohichi Suzuki, Zhenhua Pan, Jeongsuk Seo, Masao Katayama, Tsutomu Minegishi, Hiroshi Nishiyama, Tsuyoshi Takata, Kazuhiko Seki, Akihiko Kudo, Taro Yamada, Kazunari Domen

    Journal of the American Chemical Society   139 ( 4 )   1675 - 1683   2017.1

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.6b12164

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  • III–V Semiconductor Photoelectrodes

    Georges Siddiqi, Zhenhua Pan, Shu Hu

    Semiconductors and Semimetals   81 - 138   2017

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    Publisher:Elsevier  

    DOI: 10.1016/bs.semsem.2017.03.002

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  • Photocatalyst Sheets Composed of Particulate LaMg1/3Ta2/3O2N and Mo-Doped BiVO4 for Z-Scheme Water Splitting under Visible Light

    Zhenhua Pan, Takashi Hisatomi, Qian Wang, Shanshan Chen, Mamiko Nakabayashi, Naoya Shibata, Chengsi Pan, Tsuyoshi Takata, Masao Katayama, Tsutomu Minegishi, Akihiko Kudo, Kazunari Domen

    ACS Catalysis   6 ( 10 )   7188 - 7196   2016.9

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acscatal.6b01561

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  • Photoreduced Graphene Oxide as a Conductive Binder to Improve the Water Splitting Activity of Photocatalyst Sheets

    Zhenhua Pan, Takashi Hisatomi, Qian Wang, Shanshan Chen, Akihide Iwase, Mamiko Nakabayashi, Naoya Shibata, Tsuyoshi Takata, Masao Katayama, Tsutomu Minegishi, Akihiko Kudo, Kazunari Domen

    Advanced Functional Materials   26 ( 38 )   7011 - 7019   2016.8

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Photocatalyst sheets consisting of H2 evolution photocatalyst (HEP) and O2 evolution photocatalyst (OEP) particles applied to an underlying conductive layer show promise with regard to promoting efficient and scalable water splitting. One of the most important challenges in enhancing the performance of such systems is establishing efficient charge transfer between photocatalyst particles that are often thickly stacked on the conductive layer. In this study, reduced graphene oxide (RGO) is investigated as an additional solid mediator to the conductive layer to bridge particulate photocatalysts and thus ensure effective charge transfer. Photocatalyst sheets made of RhCrOx/LaMg1/3Ta2/3O2N as the HEP and BiVO4:Mo as the OEP are applied to an Au layer together with RGO. The activity of this system is 3.5 times greater following the incorporation of the RGO. Charaterization analyses reveal that RhCrOx/LaMg1/3Ta2/3O2N particles tens of nanometers in size are fixed on larger, micrometer‐sized, BiVO4:Mo particles by RGO photoreduced from GO in situ. The RGO facilitates charge transfer between particles that are distant from the underlying Au layer and thus involves more photocatalyst particles in the water splitting reaction. It is concluded that the incorporation of conductive materials into the photocatalyst particle layer can effectively enhance the water splitting activity of photocatalyst sheets.

    DOI: 10.1002/adfm.201602657

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  • Application of LaMg1/3Ta2/3O2N as a hydrogen evolution photocatalyst of a photocatalyst sheet for Z-scheme water splitting

    Zhenhua Pan, Takashi Hisatomi, Qian Wang, Mamiko Nakabayashi, Naoya Shibata, Chengsi Pan, Tsuyoshi Takata, Kazunari Domen

    Applied Catalysis A: General   521   26 - 33   2016.7

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.apcata.2015.10.034

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  • Scalable water splitting on particulate photocatalyst sheets with a solar-to-hydrogen energy conversion efficiency exceeding 1% Reviewed

    Wang Qian, Hisatomi Takashi, Jia Qingxin, Tokudome Hiromasa, Zhong Miao, Wang Chizhong, Pan Zhenhua, Takata Tsuyoshi, Nakabayashi Mamiko, Shibata Naoya, Li Yanbo, Sharp Ian D., Kudo Akihiko, Yamada Taro, Domen Kazunari

    Nature Materials   15 ( 6 )   611 - 615   2016

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Nature Publishing Group  

    DOI: 10.1038/nmat4589

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  • Photocatalytic Ozonation of Oxalic Acid Over Cu(II)-Grafted TiO2 Under Visible Light Irradiation

    Zhenhua Pan, Qizhou Cai, Qiang Luo, Xinwei Li

    Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry   45 ( 3 )   447 - 450   2014.9

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    Publishing type:Research paper (scientific journal)   Publisher:Informa UK Limited  

    DOI: 10.1080/15533174.2013.841207

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  • Mechanism and kinetics of H‐acid degradation in TiO2/O3/UV process

    Zhenhua Pan, Qizhou Cai, Qiang Luo, Xinwei Li

    The Canadian Journal of Chemical Engineering   92 ( 5 )   851 - 860   2013.10

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Abstract

    The mechanism and kinetics of synergetic effect in TiO2/O3/UV process on H‐acid degradation were investigated. The experimental results showed that H‐acid removal rate of TiO2/O3/UV process was the highest among TiO2/UV, O3/UV and TiO2/O3/UV processes. The investigation of reactions with suitable active species scavengers confirmed that H‐acid was mainly oxidised by ozone and holes on TiO2 in the TiO2/O3/UV process. The recombination between holes and electrons in TiO2 reduced in the presence of ozone, as indicated by fluorescence emission spectra. Moreover, the intermediates generated during H‐acid oxidation in various processes were analysed by LC/MSD trap. It is proposed that H‐acid was oxidised to polyhydroxy aromatics, benzene carboxylic acids and quinoids in the first step. Then, saturated aliphatics carboxylic acids were formed and mineralised to inorganic compounds through the Photo‐Kolbe reaction. Finally, a kinetic study on TiO2/UV, O3/UV and TiO2/O3/UV processes was conducted and it was confirmed that both ozonation and photocatalytic activity were improved in TiO2/O3/UV process because of the synergetic effect.

    DOI: 10.1002/cjce.21901

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  • Preparation and characterization of ZrO2/TiO2 composite photocatalytic film by micro-arc oxidation

    Qiang LUO, Qi-zhou CAI, Xin-wei LI, Zhen-hua PAN, Yu-jie LI, Xi-di CHEN, Qing-song YAN

    Transactions of Nonferrous Metals Society of China   23 ( 10 )   2945 - 2950   2013.10

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/s1003-6326(13)62818-6

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  • A Novel Way to Prepare Visible‐Light‐Responsive <scp>WO</scp>3/<scp>T</scp>i<scp>O</scp>2 Composite Film with High Porosity

    Qiang Luo, Qizhou Cai, Jian He, Xinwei Li, Xidi Chen, Zhenhua Pan, Yujie Li

    International Journal of Applied Ceramic Technology   11 ( 2 )   254 - 262   2013.4

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Amorphous oxide film was prepared on the titanium substrate by plasma electrolytic oxidation (PEO) technology in acidic electrolyte consisting of tungstate and then subject to calcination in air. Films were characterized by scanning electron microscopy, energy dispersive X‐ray, X‐ray diffraction, X‐ray photoelectron spectroscopy, photoluminescence, and UV‐Vis DRS before and after calcination, respectively. Calcined film consisted of anatase and WO3, showing more open structure compared with uncalcined film. Furthermore, the absorption edge of calcined film was shifted to visible light region and the recombination of photo‐induced carriers was inhibited effectively, resulting that WO3/TiO2 composite film produced by PEO technology and calcination should be effective as a visible‐light‐responsive photocatalyst.

    DOI: 10.1111/ijac.12062

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  • Preparation of narrow band gap V2O5/TiO2 composite films by micro-arc oxidation

    Qiang Luo, Xin-wei Li, Qi-zhou Cai, Qing-song Yan, Zhen-hua Pan

    International Journal of Minerals, Metallurgy, and Materials   19 ( 11 )   1045 - 1051   2012.11

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s12613-012-0668-1

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    Other Link: http://link.springer.com/article/10.1007/s12613-012-0668-1/fulltext.html

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Books

  • Applications of Metal Oxide Layers on Particulate Photocatalysts for Water Splitting

    Zhenhua Pan, Takashi Hisatomi, Kazunari Domen( Role: Joint author)

    2022.1 

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  • Chapter Three: III-V Photoelectrodes in Semiconductors for Photocatalysis, Book Series: Semiconductors and Semimetals

    ( Role: Joint author)

    2017 

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Research Projects

  • Optimization of photocatalytic materials with a combination of analytical data and machine learning

    Grant number:22K05158  2022.4 - 2025.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)  Chuo University

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    Grant amount: \4160000 ( Direct Cost: \3200000 、 Indirect Cost: \960000 )

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  • Separation of surface and bulk recombination velocities of carriers in SrTiO3 for optimization of photocatalytic performance

    Grant number:21H01828  2021.4 - 2024.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)  Nagoya Institute of Technology

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    Grant amount: \16250000 ( Direct Cost: \12500000 、 Indirect Cost: \3750000 )

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  • Investigating the Energetics of Particulate Photocatalysts Co-loaded with Hydrogen- and Oxygen-Evolution Cocatalysts

    2020.4 - 2021.3

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    Grant type:Competitive

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Teaching Experience

  • 応用化学実験3

    Institution:中央大学