INVESTIGATION OF HYDROGEN EVOLUTION ON RANEY-NICKEL COMPOSITE-COATED ELECTRODES

被引：81

作者：

CHOQUETTE, Y ^{[1
]}

BROSSARD, L ^{[1
]}

LASIA, A ^{[1
]}

MENARD, H ^{[1
]}

机构：

[1] UNIV SHERBROOKE,DEPT CHIM,SHERBROOKE J1K 2R1,QUEBEC,CANADA

来源：

ELECTROCHIMICA ACTA | 1990年 / 35卷 / 08期

关键词：

hydrogen discharge; porous electrodes; Raney-Ni electrodes; water electrolysis;

D O I：

10.1016/0013-4686(90)90058-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The hydrogen discharge on the Raney nickel composite coated electrode is investigated in 30% wt NaOH aqueous solution at 70°C by ac impedance technique. The easiest pathway for the hydrogen evolution reaction (HER) is the Volmer-Heyrovsky mechanism. Both Volmer and Heyrovsky steps control the reaction. The increase in the electrocatalytic activity from 30% wt NaOH to 1.04 M NaOH at 70°C is related to a larger exchange current density of the HER. © 1990.

引用

页码：1251 / 1256

页数：6

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