Visible‐Light‐Responsive Photoanodes for Highly Active,Stable Water Oxidation |
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| Authors: | Dr Jeongsuk Seo Dr Hiroshi Nishiyama Dr Taro Yamada Prof Kazunari Domen |
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| Institution: | 1. Center for Energy and Environmental Science, Shinshu University, Nagano, Japan;2. Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 2-11-9 Iwamotocho, Tokyo, Japan;3. Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan |
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| Abstract: | Solar energy is a natural and effectively permanent resource and so the conversion of solar radiation into chemical or electrical energy is an attractive, although challenging, prospect. Photo‐electrochemical (PEC) water splitting is a key aspect of producing hydrogen from solar power. However, practical water oxidation over photoanodes (in combination with water reduction at a photocathode) in PEC cells is currently difficult to achieve because of the large overpotentials in the reaction kinetics and the inefficient photoactivity of the semiconductors. The development of semiconductors that allow high solar‐to‐hydrogen conversion efficiencies and the utilization of these materials in photoanodes will be a necessary aspect of achieving efficient, stable water oxidation. This Review discusses advances in water oxidation activity over photoanodes of n‐type visible‐light‐responsive (oxy)nitrides and oxides. |
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| Keywords: | (oxy)nitrides oxides oxygen evolution perovskite photoelectrochemical water splitting |
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