HYDROGEN EVOLUTION REACTION AT COMPOSITE-COATED RANEY-NICKEL ELECTRODES IN AQUEOUS AND AQUEOUS-METHANOLIC SOLUTIONS

被引：32

作者：

CHEONG, AK

LASIA, A

LESSARD, J

机构：

[1] Centre de Recherche en Electrochimie et Electrocataluse, Département de chimie, Université de Sherbrooke, Sherbrooke

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1993年 / 140卷 / 10期

关键词：

D O I：

10.1149/1.2220899

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The hydrogen evolution reaction was studied at composite-coated Raney nickel electrodes in aqueous and aqueous methanolic solutions containing 1M KOH at 25-degrees-C, using ac impedance and steady-state polarization techniques. In aqueous solutions, the experimental results were analyzed by the constant-phase element (CPE) and the porous electrode models, and the resulting parameters were compared. In aqueous methanolic solutions it was found that the experimental data could be well approximated by both the fractal and the porous models. The kinetic parameters obtained in the different media were compared to those obtained on polycrystalline nickel.

引用

页码：2721 / 2725

页数：5

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