Mechano-catalytic overall water splitting on some mixed oxides

被引:39
作者
Hitoki, G
Takata, T
Ikeda, S
Hara, M
Kondo, JN
Kakihana, M
Domen, K
机构
[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
[2] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
基金
日本学术振兴会;
关键词
mechano-catalyst; water splitting; mixed oxides;
D O I
10.1016/S0920-5861(00)00457-0
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Simple transition metal oxides such as NiO, Co3O4, Fe3O4 and Cu2O were found to catalytically decompose water into H-2 and O-2 by mechanical energy, The reaction is regarded as "mechano-catalytic'' overall water splitting" and is a quite novel catalytic reaction. In this paper, some,general aspects on the mechano-catalytic overall water splitting are reviewed on simple oxides. In addition, recent results on the mechano-catalytic activity of a groups of mixed oxides, wolramite-type oxides with a formula of ABO(4) (A = Fe, Co, Ni and Cu, etc., B = W, Mo), are shown. AWO(4) (A = Fe, Co, Ni and Cu) decomposed water into H-2 and O-2 under the supply of mechanical energy, indicating that mechano-catalytic overall water splitting proceeded on wolframite-type compounds containing 3d-transition metals. AMoO(4) (A = Fe, Co, Ni) also decomposed water into H-2 and O-2 under supply of mechanical energy. The reaction properties on wolframite-type oxides are discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:175 / 181
页数:7
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