Structural Characterization of Cu2O After the Evolution of H2 under Visible Light Irradiation

被引：38

作者：

Kakuta, Seiji ^{[1
,2
]}

Abe, Toshiyuki ^{[1
]}

机构：

[1] Hirosaki Univ, Grad Sch Sci & Technol, Dept Frontier Mat Chem, Hirosaki, Aomori 0368561, Japan

[2] Aomori Ind Res Ctr, Aomori 0300113, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 03期

关键词：

HYDROGEN; CATALYSTS;

D O I：

10.1149/1.3054330

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Photocatalysis of Cu2O powder was investigated to evaluate its ability for the stoichiometric decomposition of water into O-2 and H-2. Although thus far it has been indicated that Cu2O can function as a photocatalyst for the overall water splitting, H-2 evolution was found to take place solely while there was no generation of O-2. Moreover, the evolution rate of H-2 gradually decreased during prolonged irradiation, and consequently, the evolution of H-2 ceased. From the structural analyses of deactivated Cu2O, it appeared that the H-2 evolution originates in the self-oxidation of Cu2O to CuO. (C) 2008 The Electrochemical Society. [DOI: 10.1149/1.3054330] All rights reserved.

引用

页码：P1 / P3

页数：3

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