Development of highly efficient water splitting photocatalyst sheets and establishment of their working principles
Project/Area Number |
16H02417
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Catalyst/Resource chemical process
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Research Institution | Shinshu University (2018) The University of Tokyo (2016-2017) |
Principal Investigator |
Domen Kazunari 信州大学, 先鋭領域融合研究群環境・エネルギー材料科学研究所, 特別特任教授 (10155624)
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Research Collaborator |
HISATOMI Takashi
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥45,110,000 (Direct Cost: ¥34,700,000、Indirect Cost: ¥10,410,000)
Fiscal Year 2018: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2017: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2016: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
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Keywords | エネルギー変換プロセス / 光触媒 / 水分解 / 人工光合成 / 大面積 / パネル / エネルギー障壁 |
Outline of Final Research Achievements |
The working principles of water-splitting photocatalyst sheets, consisting of particulate photocatalysts fixed on a plane, and panel reactors potentially scalable and inexpensive were studied. It was very important utilizing conductive materials that had low activity against backward reactions and that lowered energy barriers at the interface between photocatalysts and the conductive materials for the improvement of the water splitting activity. The use of conductive materials that did not inhibit sunlight absorption by photocatalysts was also preferable. Moreover, the scalability of panel reactors was experimentally demonstrated using proto-type 1-m2 panel reactors.
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Academic Significance and Societal Importance of the Research Achievements |
本研究課題を通じて高効率に水を水素と酸素に分解する光触媒シートの作動原理を明らかにし,人工光合成型プロセスの開発に重要な学術的指針を確立することができた.光触媒材料の合成法の改良,各光触媒材料と導電材の間に理想的な接合を形成させるプロセスの確立,逆反応の抑制に効果的な表面修飾法の開発を継続して検討することで,大規模な高効率太陽光水分解反応の実現に向けて前進できると期待される.
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Report
(4 results)
Research Products
(199 results)
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[Journal Article] A Particulate Photocatalyst Water-Splitting Panel for Large-Scale Solar Hydrogen Generation2018
Author(s)
Y. Goto, T. Hisatomi, Q. Wang, T. Higashi, K. Ishikiriyama, T. Maeda, Y. Sakata, S. Okunaka, H. Tokudome, M. Katayama, S. Akiyama, H. Nishiyama, Y. Inoue, T. Takewaki, T. Setoyama, T. Minegishi, T. Takata, T. Yamada, K. Domen
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Journal Title
Joule
Volume: 2
Issue: 3
Pages: 509-520
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] A particulate (ZnSe)0.85(CuIn0.7Ga0.3Se2)0.15 photocathode modified with CdS and ZnS for sunlight-driven overall water splitting2017
Author(s)
Y. Goto, T. Minegishi, Y. Kageshima, T. Higashi, H. Kaneko, Y. Kuang, M. Nakabayashi, N. Shibata, H. Ishihara, T. Hayashi, A. Kudo, T. Yamada, K. Domen
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Journal Title
J. Mater. Chem. A
Volume: 5
Issue: 40
Pages: 21242-21248
DOI
Related Report
Peer Reviewed
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[Journal Article] Overall water splitting by photoelectrochemical cells consisting of (ZnSe)0.85(CuIn0.7Ga0.3Se2)0.15 photocathodes and BiVO4 photoanodes2017
Author(s)
T. Higashi, H. Kaneko, T. Minegishi, H. Kobayashi, M. Zhong, Y. Kuang, T. Hisatomi, M. Katayama, T. Takata, H. Nishiyama, T. Yamada, K. Domen
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Journal Title
Chem. Communication
Volume: 53
Issue: 85
Pages: 11674-11677
DOI
Related Report
Peer Reviewed
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[Journal Article] Particulate photocatalyst sheets based on carbon conductor layer for efficient Z-scheme pure-water splitting at ambient pressure2017
Author(s)
Q. Wang, T. Hisatomi, Y. Suzuki, Z. Pan, J. Seo, M. Katayama, T. Minegishi, H. Nishiyama, T. Takata, K. Seki, A. Kudo, T. Yamada, K. Domen
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Journal Title
J. Am. Chem. Soc.
Volume: 139
Issue: 4
Pages: 1675-1683
DOI
Related Report
Peer Reviewed
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[Journal Article] Enhancement of charge separation and hydrogen evolution on particulate La5Ti2CuS5O7 photocathodes by surface modification2017
Author(s)
Jingyuan Liu, Takashi Hisatomi, Dharmapura H. K. Murthy, Miao Zhonga, Mamiko Nakabayashi, Tomohiro Higashia, Yohichi Suzuki, Hiroyuki Matsuzaki, Kazuhiko Seki, Akihiro Furube, Naoya Shibata, Masao Katayama, Tsutomu Minegishi, Kazunari Domen
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Journal Title
The Journal of Physical Chemistry Letters
Volume: 8
Issue: 2
Pages: 375-379
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Crystal Structure, Electronic Structure, and Photocatalytic Activity of Oxysulfides: La2Ta2ZrS2O8, La2Ta2TiS2O8, and La2Nb2TiS2O82016
Author(s)
Goto, Yosuke; Seo, Jeongsuk; Kumamoto, Kazunori; Hisatomi, Takashi; Mizuguchi, Yoshikazu; Kamihara, Yoichi
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Journal Title
Inorganic Chemistry
Volume: 55
Issue: 7
Pages: 3674-3679
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Scalable water splitting on particulate photocatalyst sheets with a solar-to-hydrogen energy conversion efficiency exceeding 1%2016
Author(s)
Q. Wang, T. Hisatomi, Q. Jia, H. Tokudome, M. Zhong, C. Wang, Z. Pan, T. Takata, M. Nakabayashi, N. Shibata, Y. Li, I. D. Sharp, A. Kudo, T. Yamada, K. Domen
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Journal Title
Nature Mater.
Volume: 15
Issue: 6
Pages: 611-615
DOI
NAID
Description
【掲載確定】 印刷中
Related Report
Peer Reviewed
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[Journal Article] Photoreduced graphene oxide as a conductive binder for improving the water splitting activity of photocatalyst sheets2016
Author(s)
Z. Pan, T. Hisatomi, Q. Wang, S. Chen, A. Iwase, M. Nakabayashi, N. Shibata, T. Takata, M. Katayama, T. Minegishi, A. Kudo, and K. Domen
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Journal Title
Adv. Funct. Mater.
Volume: 26
Issue: 38
Pages: 7011-7019
DOI
Related Report
Peer Reviewed
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[Journal Article] Photocatalyst Sheets Composed of Particulate LaMg1/3Ta2/3O2N and Mo-Doped BiVO4 for Z-Scheme Water Splitting under Visible Light2016
Author(s)
Z. Pan, T. Hisatomi, Q. Wang, S. Chen, M. Nakabayashi, N. Shibata, C. Pan, T. Takata, M. Katayama, T. Minegishi, A. Kudo, and K. Domen
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Journal Title
ACS Catal.
Volume: 6
Issue: 10
Pages: 7188-7196
DOI
Related Report
Peer Reviewed
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[Journal Article] Photocatalytic property of metal ion added SrTiO3 to Overall H2O splitting2015
Author(s)
Yoshihisa Sakata, Yoshiko Miyoshi, Tatsuya Maeda, Kohki Ishikiriyama, Yuki Yamazaki, Hayao Imamura, Yeilin Ham, Takashi Hisatomi, Jun Kubota, Akira Yamakata, Kazunari Domen
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Journal Title
Applied Catalysis A: General
Volume: 印刷中
Pages: 227-232
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Photoelectrochemical Water Splitting by a Combination of Surface Modified La5Ti2Cu0.9Ag0.1S5O7 and BaTaO2N Photoelectrodes2017
Author(s)
Tomohiro HIGASHI, Yuki SHINOHARA, Atsushi OHNISHI, Jingyuan LIU, Koichiro UEDA, Takashi HISATOMI, Masao KATAYAMA, Hiroshi NISHIYAMA, Taro YAMADA, Tsutomu MINEGIShi, Kazunari DOMEN
Organizer
日本化学会 第97春季年会
Related Report
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[Presentation] Effect of surface modification of particulate La5Ti2Cu1-xAgxS5O7 photocathodes with oxides on charge separation and hydrogen evolution2017
Author(s)
Jingyuan LIU, Takashi HISATOMI, Dharmapura MURTHY, Mamiko Nakabayashi, Naoya SHIBATA, Hiroyuki MATSUZAKI, Yohichi SUZUKI, Kazuhiko SEKI, Akihiro FURUBE, Masao KATAYAMA, Tsutomu MINEGISHI, Kazunari DOMEN
Organizer
第119回 触媒討論会
Related Report
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[Presentation] Effectof oxide overlayers on the photoeectrochemica properties of La5Ti2Cu-xAgxS507 photoelectrodes2016
Author(s)
Jingyuan LIU, Takashi HISATOMI, Murthy DHARMAPURA, Mamiko NAKABAYASHI, Naoya SHIBATA, Hiroyuki MATSUZAKI, Yohichi SUZUKI, Kazuhiko SEKI, Akihiro FURUBE, Masao KATAYAMA, Tsutomu MINEGISHI, Kazunari DOMEN
Organizer
第118回 触媒討論会
Related Report
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[Presentation] Improving the water splitting activity of photocatalyst sheets by incorporating reduced graphene oxide2016
Author(s)
Zhenhua PAN, Takashi HISATOMI, Qian WANG, Shanshan CHEN, Akihide IWASE, Mamiko NAKABAYSHI, Naoya SHIBATA, Tsuyoshi TAKATA, Masao KATAYAMA, Tsutomu MINEGISHI, Akihiko KUDO, Kazunari DOMEN
Organizer
第118回 触媒討論会
Related Report
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[Presentation] Overall Water Splitting by Series-connected La5Ti2(Cu,Ag)S5O7 Photocathode and BaTaO2N Photoanode Utilizing Visible Light up to 650 nm2016
Author(s)
Tomohiro HIGASHI, Yuki SHINOHARA, Atsushi OHNISHI, Jingyuan LIU, Koichiro UEDA, Shintaro OKAMURA, Takashi HISATOMI, Masao KATAYAMA, Hiroshi NISHIYAMA, Taro YAMADA, Tsutomu MINEGISHI, Kazunari DOMEN
Organizer
229th ECS Meeting
Related Report
Int'l Joint Research
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