ELECTROCATALYTIC PROPERTIES OF DOPED NICKEL BORIDE BASED ELECTRODES FOR THE HYDROGEN EVOLUTION REACTION

被引：22

作者：

BORODZINSKI, JJ

LASIA, A

机构：

[1] Département de Chimie, Université de Sherbrooke, Sherbrooke, Quebec

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1994年 / 24卷 / 12期

关键词：

D O I：

10.1007/BF00249892

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Amorphous nickel boride electrodes doped by small amounts of Rh, Ru, Co, Cr, Zn or Pt were studied for the hydrogen evolution reaction (HER) in 1 M NaOH solution at 70-degrees-C. Steady-state galvanostatic measurements, a.c. impedance spectroscopy, X-ray diffraction and scanning electron microscopy were used. The properties of the pressed electrodes and the kinetic parameters of the HER were determined. The constant phase element model adequately describes the a.c. behaviour of these electrodes. It was found that the HER proceeds through the Volmer-Heyrovsky mechanism. An increase in catalytic properties was observed for materials doped with Rh, Ru and Co.

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页码：1267 / 1275

页数：9

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