Synthesis and characterisation of spinel-type cobalt and rhodium oxide electrodes

被引：0

作者：

Pereira, I ^{[1
]}

Nunes, F ^{[1
]}

Mendonça, H ^{[1
]}

Costa, F ^{[1
]}

机构：

[1] Univ Lisbon, Fac Ciencias, Ctr Ciencias Mol & Mat, Dept Quim & Bioquim, P-1749016 Lisbon, Portugal

来源：

ENERGY AND ELECTROCHEMICAL PROCESSES FOR A CLEANER ENVIRONMENT, PROCEEDINGS | 2001年 / 2001卷 / 23期

关键词：

Co-Rh oxides; spinel; oxygen evolution;

D O I：

暂无

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：

Co2.9Rh0.1O4 layers on Ni supports were prepared by thermal decomposition of aqueous nitrate solutions at 673 K. XRD and SEM/EDS techniques have been used in the characterisation of the powder samples and oxide layers. The X-ray diffractograms present the characteristic lines of a cubic spinel structure, for all the samples. The influence of the oxide loading and the presence of rhodium on the electrodes voltammetric response in alkaline solutions, have been studied. The films were tested for oxygen evolving capability in alkaline medium, by means of steady state measurements and the electroactivity analysed in terms of both electronic and geometric factors. Long-term stability tests were performed under oxygen evolution conditions.

引用

页码：414 / 427

页数：14

共 15 条

[1] PROPERTIES OF THERMALLY PREPARED IRIDIUM DIOXIDE ELECTRODES [J].