Oxidative Energy Storage Ability of a TiO<sub>2</sub>−Ni(OH)<sub>2</sub> Bilayer Photocatalyst
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- Yukina Takahashi
- Institute of Industrial Science, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8505, Japan
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- Tetsu Tatsuma
- Institute of Industrial Science, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8505, Japan
書誌事項
- 公開日
- 2005-11-03
- DOI
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- 10.1021/la052107b
- 公開者
- American Chemical Society (ACS)
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説明
A TiO2-coated indium tin oxide electrode was further coated with Ni(OH)2 by electrodeposition to obtain a TiO2-Ni(OH)2 bilayer film. Upon irradiation of the bilayer film with UV light in a pH 10 buffer, the Ni(OH)2 layer was oxidized, and it turned from colorless to brown; oxidative energy was stored in the layer. The potential of the oxidative energy thus stored was about +0.7 V versus Ag|AgCl. The stored energy could be reversibly taken out of the film by chemical and electrochemical means. The photooxidized Ni(OH)2 was rereduced by alcohols, aldehydes, phenol, I-, H2O2, formate, and acetone.
収録刊行物
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- Langmuir
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Langmuir 21 (26), 12357-12361, 2005-11-03
American Chemical Society (ACS)