ELECTROCATALYTIC OXIDATION OF FORMIC-ACID ON ULTRAFINE PALLADIUM PARTICLES SUPPORTED ON A GLASSY-CARBON

被引：40

作者：

ZHANG, XG ^{[1
]}

ARIKAWA, T ^{[1
]}

MURAKAMI, Y ^{[1
]}

YAHIKOZAWA, K ^{[1
]}

TAKASU, Y ^{[1
]}

机构：

[1] SHINSHU UNIV,FAC TEXT SCI & TECHNOL,DEPT FINE MAT ENGN,UEDA,NAGANO 386,JAPAN

来源：

ELECTROCHIMICA ACTA | 1995年 / 40卷 / 12期

关键词：

ULTRAFINE PARTICLE; FORMIC ACID; DEMS; ELECTROCHEMICAL OXIDATION; PALLADIUM;

D O I：

10.1016/0013-4686(95)00105-N

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of particle size of ultrafine palladium particles on the electrochemical oxidation of formic acid in a perchloric acid solution has been investigated by cyclic voltammetry (CV) and differential electrochemical mass spectroscopy (DEMS). Except in the hydrogen sorption-desorption region, only carbon dioxide was observed by the DEMS as an oxidation product, and the profile of the i(mass)-E curve was in fair agreement with that of i-E curves. With a decrease in the palladium particle size, the specific activity of the palladium particles for the oxidation of formic acid gradually increased until ca. 3 nm in the mean diameter, and then it steeply decreased.

引用

页码：1889 / 1897

页数：9

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