Precise composition control of metal-cluster cocatalyst, elucidation of their effects and creation of high activity water-splitting photocatalyst
Project/Area Number |
16K21402
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Energy-related chemistry
Nanomaterials chemistry
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Research Institution | Tokyo University of Science |
Principal Investigator |
Kurashige Wataru 東京理科大学, 理学部第一部応用化学科, 講師 (50734589)
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Research Collaborator |
Negishi Yuichi 東京理科大学, 理学部第一部応用化学科, 教授 (20332182)
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Project Period (FY) |
2016-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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Keywords | 金属クラスター / 光触媒 / 助触媒 / 精密担持 / SMSI / 金クラスター / 水分解半導体光触媒 / 触媒 / ナノ材料 |
Outline of Final Research Achievements |
Water-splitting photocatalysts are generally composed of a semiconductor photocatalyst and metal nanoparticle cocatalyst that acts as the reaction site. Effective strategies to achieve highly active photocatalysts include improving the semiconductor photocatalyst and the cocatalyst. Herein, we report a study on a gold (Au) cluster-supported BaLa4Ti4O15 photocatalyst. In this study, first, the influence of refining Au cluster cocatalyst particles on the water-splitting reaction was clarified at an elementary reaction level. As a result, we found that suppressing the back reaction is an important factor to achieve high activity by refining the cocatalyst. Then, we formed a Cr2O3 shell on the Au cluster cocatalyst particles (Au25) to prevent the back reaction. The resulting water-splitting photocatalyst was highly active and stable, exhibiting activity about 19 times higher than that of Au25-BaLa4Ti4O15 without a Cr2O3 shell.
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Report
(3 results)
Research Products
(29 results)
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[Journal Article] Au25-Loaded BaLa4Ti4O15 Water-Splitting Photocatalyst with Enhanced Activity and Durability Produced Using New Chromium Oxide Shell Formation Method2018
Author(s)
W. Kurashige, R. Kumazawa, D. Ishii, R. Hayashi, Y. Niihori, S. Hossain, L. V. Nair, T. Takayama, A. Iwase, S. Yamazoe, T. Tsukuda, A. Kudo, Y. Negishi
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Journal Title
J. Phys. Chem. C
Volume: 印刷中
Issue: 25
Pages: 13669-13681
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] [Pt17(CO)12(PPh3)8]n+ (n = 1, 2): Synthesis and Geometric and Electronic Structures2017
Author(s)
L. V. Nair, S. Hossain, S. Wakayama, S. Takagi, M. Yoshioka, J. Maekawa, A. Harasawa, B. Kumar, Y. Niihori, W. Kurashige, Y. Negishi
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Journal Title
THE JOURNAL OF PHYSICAL CHEMISTRY
Volume: C
Issue: 20
Pages: 11002-11009
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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