HIGH AREA NI-ZN AND NI-CO-ZN CODEPOSITS AS HYDROGEN ELECTRODES IN ALKALINE-SOLUTIONS

被引：66

作者：

GIZ, MJ

MACHADO, SAS

AVACA, LA

GONZALEZ, ER

机构：

[1] Instituto de Física e Química de São Carlos/USP C.P. 369, São Carlos, 13560, SP

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1992年 / 22卷 / 10期

关键词：

D O I：

10.1007/BF01024146

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper describes the preparation of Ni-Zn and Ni-Co-Zn coatings by electrodeposition on a mild steel substrate. After treatment in a KOH solution to leach out part of the zinc, the materials were evaluated as cathodes for the hydrogen evolution reaction in alkaline solutions. The materials were found to have high surface areas and low Tafel slopes. Overpotentials at current densities of technological interest are significantly lower than those of the traditional materials used in water electrolysis.

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页码：973 / 977

页数：5

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