Electrochemical characterization of porous nickel-cobalt oxide electrodes

被引：87

作者：

Castro, EB

Real, SG

Dick, LFP

机构：

[1] Natl Univ La Plata, INIFTA, RA-1900 La Plata, Argentina

[2] Univ Fed Rio Grande Sul, Dept Met, BR-90035190 Porto Alegre, RS, Brazil

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2004年 / 29卷 / 03期

关键词：

oxygen evolution reaction; cobalt oxides; anodic catalysts;

D O I：

10.1016/S0360-3199(03)00133-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrochemical characterization of mixed oxides containing cobalt and nickel prepared by cathodic electrodeposition is presented. Their catalytic properties are discussed according to the results obtained employing stationary polarization curves, voltammetry, electrochemical impedance spectroscopy, and scanning electron microscopy. Impedance results were analyzed considering a porous electrode and approximated in terms of a finite transmission line model of conical pores linked in parallel. For sake of comparison, results obtained with Co-Ni cobaltites prepared by thermal decomposition are also presented. (C) 2003 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：255 / 261

页数：7

共 14 条

[1] Oxygen evolution on electrodeposited cobalt oxides [J].