TiO₂-Ni(OH)₂双层光催化剂的氧化储能能力。

Oxidative energy storage ability of a TiO2-Ni(OH)2 bilayer photocatalyst.

作者信息

Takahashi Yukina, Tatsuma Tetsu

机构信息

Institute of Industrial Science, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8505, Japan.

出版信息

Langmuir. 2005 Dec 20;21(26):12357-61. doi: 10.1021/la052107b.

DOI:10.1021/la052107b

PMID:16343014

Abstract

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.

摘要

通过电沉积在二氧化钛包覆的氧化铟锡电极上进一步包覆氢氧化镍，以获得二氧化钛 - 氢氧化镍双层膜。在pH为10的缓冲溶液中用紫外光照射该双层膜时，氢氧化镍层被氧化，颜色从无色变为棕色；氧化能存储在该层中。相对于Ag|AgCl，如此存储的氧化能的电位约为 +0.7 V。存储的能量可以通过化学和电化学方法从膜中可逆地取出。光氧化的氢氧化镍可被醇、醛、苯酚、碘离子、过氧化氢、甲酸和丙酮再次还原。