STUDIES OF THE LIMITING POLARIZATION BEHAVIOR OF GAS-DIFFUSION ELECTRODES WITH DIFFERENT PLATINUM DISTRIBUTIONS AND HYDROPHOBIC PROPERTIES

被引：23

作者：

DASILVA, SLA

TICIANELLI, EA

机构：

[1] Instituto de Química de São Carlos, USP, São Carlos, SP CEP 13560-970

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1995年 / 391卷 / 1-2期

基金：

巴西圣保罗研究基金会;

关键词：

PLATINUM; CARBON; OXYGEN REDUCTION REACTIONS; COMPOSITION EFFECTS; STRUCTURE EFFECTS; GAS DIFFUSION ELECTRODES;

D O I：

10.1016/0022-0728(95)03939-E

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The oxygen reduction reaction (ORR) was studied in 0.5, 1.0 and 2.0 M sulfuric acid solutions on locally developed carbon-cloth-supported gas diffusion electrodes with the catalyst layers containing constant platinum loadings (0.4 mg Pt cm(-2)) but different platinum-to-carbon ratios and different PTFE contents. Cyclic voltammetry, steady state polarization curves, and the impedance method applied at several electrode potentials were employed in the experimental investigations.

引用

页码：101 / 109

页数：9