EFFICIENT PHOTOELECTROCHEMICAL REDUCTION OF CARBON-DIOXIDE ON A P-TYPE SILICON (P-SI) ELECTRODE MODIFIED WITH VERY SMALL COPPER PARTICLES

被引：29

作者：

HINOGAMI, R

MORI, T

YAE, SJ

NAKATO, Y

机构：

[1] OSAKA UNIV, FAC ENGN SCI, DEPT CHEM, TOYONAKA, OSAKA 560, JAPAN

[2] OSAKA UNIV, PHOTOENERGET ORGAN MAT RES CTR, TOYONAKA, OSAKA 560, JAPAN

来源：

CHEMISTRY LETTERS | 1994年 / 09期

关键词：

D O I：

10.1246/cl.1994.1725

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photoelectrochemical reduction of CO2 was performed with p-type silicon (p-Si) electrodes modified with very small Cu particles. Hydrocarbons such as methane and ethylene were produced together with CO and HCOOH similar to the case of a Cu-metal electrode, but at potentials ca. 0.4 V more positive than the Cu-metal electrode, clearly showing that the photovoltage generated in the p-Si is effectively utilized for the CO2 reduction. On the contrary, p-Si electrodes coated with continuous Cu layers as well as naked p-Si electrodes showed no such photo-shifts in potential.

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页码：1725 / 1728

页数：4

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