New materials for the light-induced hydrogen evolution reaction from the Cu-Si-Ti-O system

被引：13

作者：

Stein, Helge S. ^{[1
]}

Gutkowski, Ramona ^{[2
]}

Siegel, Alexander ^{[1
]}

Schuhmann, Wolfgang ^{[2
,3
]}

Ludwig, Alfred ^{[1
,3
]}

机构：

[1] Ruhr Univ Bochum, Inst Mat, Univ Str 150, D-44780 Bochum, Germany

[2] Ruhr Univ Bochum, Analyt Chem Ctr Electrochem Sci CES, Univ Str 150, D-44780 Bochum, Germany

[3] Ruhr Univ Bochum, Mat Res Dept, Univ Str 150, D-44780 Bochum, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 08期

关键词：

SEMICONDUCTOR MATERIAL LIBRARIES; OXIDE SEMICONDUCTORS; W-O; WATER; IDENTIFICATION; STABILITY; DEVICES; CELLS;

D O I：

10.1039/c5ta10186g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cu-containing photocathodes are generally limited by fast photocorrosion under working conditions. Hence stabilization of these materials is a key factor in their potential application for the light-induced hydrogen evolution reaction (HER). In order to identify new materials, oxidized Cu-Si-Ti metallic thin film precursor materials libraries were evaluated using a combinatorial approach. High-throughput photoelectrochemical characterization using an automated optical scanning droplet cell was performed on a material library to analyze doping and alloying effects on the light-induced HER. The results revealed that compositions near Ti-doped CuSiO3 (dioptase and copper-polysilicate) and Si-doped Cu3TiOx act as comparatively stable and highly active materials for HER.

引用

页码：3148 / 3152

页数：5

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