Kinetic study of the hydrogen oxidation reaction on platinum and Nafion(R) covered platinum electrodes

被引：117

作者：

Mello, RMQ ^{[1
]}

Ticianelli, EA ^{[1
]}

机构：

[1] USP,INST QUIM SAO CARLOS,BR-13560970 SAO CARLOS,SP,BRAZIL

来源：

ELECTROCHIMICA ACTA | 1997年 / 42卷 / 06期

基金：

巴西圣保罗研究基金会;

关键词：

hydrogen; hydrogen oxidation reaction; platinum electrode; polymer modified electrode; polymer electrolyte;

D O I：

10.1016/S0013-4686(96)00282-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work an investigation of the hydrogen oxidation reaction at platinum and at platinum/polymer electrolyte interfaces in contact with aqueous solutions composed of mixtures of H2SO4 and K2SO4 (pH range of 0.2-7.5) was carried out. The studies were conducted using cyclic voltammetry, rotating disk electrode and potential step chronoamperometry. The results allowed the determination of the solubility and the diffusion coefficient of the hydrogen gas in the aqueous solutions and the permeability in the polymer electrolyte. Specific theoretical treatments were employed in order to allow the interpretation of the experimental data and to characterize the kinetic and the mechanism of the hydrogen oxidation reaction. Copyright (C) 1997 Elsevier Science Ltd.

引用

页码：1031 / 1039

页数：9

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