HYDROGEN ABSORPTION IN PALLADIUM ELECTRODES IN ALKALINE-SOLUTIONS

被引：46

作者：

ENYO, M

BISWAS, PC

机构：

[1] Catalysis Research Center, Hokkaido University, Sapporo

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1992年 / 335卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(92)80250-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The entry of hydrogen into a palladium electrode in alkaline solutions was investigated. It is shown, from analysis of the overpotential components observed in transient polarization measurements, that the hydrogen electrode reaction on palladium obeys the Volmer-Tafel mechanism, similar to that in acidic solutions studied earlier. Hydrogen pressures equivalent to hydrogen overpotentials are evaluated. They increase with the overpotential but the dependence is much less than that calculated by applying a Nernst type equation to the total overpotential; this is also similar to the behaviour observed in acidic solution. The equivalent hydrogen pressure is practically independent of the concentration of alkali but slightly dependent on the kind of alkali, being highest in KOH solution.

引用

页码：309 / 319

页数：11

共 18 条

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