TOTAL INHIBITION OF THE OXYGEN REDUCTION REACTION AT AU(111) BY COPPER ADLAYERS IN SULFURIC-ACID-SOLUTION

被引：9

作者：

ABE, T ^{[1
]}

MIKI, Y ^{[1
]}

ITAYA, K ^{[1
]}

机构：

[1] TOHOKU UNIV, FAC ENGN, DEPT ENGN SCI, SENDAI, MIYAGI 980, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1994年 / 67卷 / 08期

关键词：

D O I：

10.1246/bcsj.67.2075

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of an underpotentially deposited adlayer of copper on the oxygen reduction reaction (ORR) at Au(111) has been studied in a 0.05 M H2SO4 solution using hanging meniscus rotating disk voltammetry. The total inhibition of the ORR was found after the formation of the first Cu adlayer. Two possible structures for the Cu adlayer on Au(111) take into account inhibition of the ORR. The total inhibition observed in the present study can be explained by a honeycomb (square-root 3 x square-root 3)R30-degrees structure, rather than a simple (square-root 3 x square-root 3)R30-degrees Cu adlayer. A bridging two-site process (disproportionation reaction) is not expected to occur on the honeycomb Cu adlayer.

引用

页码：2075 / 2078

页数：4

共 17 条

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