Electrodeposited composite electrode materials: effect of the concentration of the electrocatalytic dispersed phase on the electrode activity

被引：34

作者：

Bertoncello, R

Furlanetto, F

Guerriero, P

Musiani, M

机构：

[1] CNR, IPELP, I-35127 Padua, Italy

[2] Univ Padua, Dip CIMA, I-35151 Padua, Italy

[3] CNR, ICTIMA, I-35127 Padua, Italy

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 23期

关键词：

oxygen evolution; anode; PbO2; Tl2O3; Co3O4;

D O I：

10.1016/S0013-4686(99)00165-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

PbO2 + Co3O4, Tl2O3 + Co3O4 and Ni + Co3O4 composite layers have been obtained by either anodic (oxide matrices) or cathodic (Ni-matrix) electrodeposition. Their electrocatalytic activity in the oxygen evolution reaction has been investigated with the aim of assessing the effect of concentration of Co3O4 and surface roughness. Different composites showed a different dependence of oxygen evolution current density on Co3O4 content. Only in the case of PbO2 + Co3O4, the electrode effective area appeared to increase with the dispersed phase concentration, resulting in a non-linear relationship between oxygen evolution rate and Co3O4 content. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：4061 / 4068

页数：8

共 35 条

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