A KINETIC-STUDY OF THE ELECTROREDUCTION OF ANODICALLY FORMED COBALT OXIDE LAYERS

被引：19

作者：

GERVASI, CA ^{[1
]}

BIAGGIO, SR ^{[1
]}

VILCHE, JR ^{[1
]}

ARVIA, AJ ^{[1
]}

机构：

[1] UNIV FED SAO CARLOS,CTR CIENCIAS & TECNOL,DEPT QUIM,BR-13560 SAO CARLOS,SP,BRAZIL

来源：

ELECTROCHIMICA ACTA | 1991年 / 36卷 / 14期

关键词：

COBALT OXIDES; ELECTROREDUCTION; KINETICS; VOLTAMMETRY; CHRONOAMPEROMETRY;

D O I：

10.1016/0013-4686(91)85223-T

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The kinetics of the electroreduction of anodically formed cobalt oxide layers in different carbonate-bicarbonate aqueous solutions were investigated using combined voltammetric and potential step techniques. The composition of the electrolyte was varied to cover wide pH and ionic strength ranges. The electroreduction reaction can be explained through a nucleation and three-dimensional growth process, involving cobalt phase formation from either soluble Co(II) or Co(III) species.

引用

页码：2147 / 2152

页数：6

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