LEACHING OF RANEY-NICKEL COMPOSITE-COATED ELECTRODES

被引：18

作者：

CHOQUETTE, Y ^{[1
]}

BROSSARD, L ^{[1
]}

MENARD, H ^{[1
]}

机构：

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

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1990年 / 20卷 / 05期

关键词：

D O I：

10.1007/BF01094317

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The changes in the morphology and the composition of Raney Ni composite-coated electrodes was investigated during leaching in concentrated NaOH aqueous solutions. The rate of hydrogen generated during leaching is increased by stirring the solution, raising the temperature and increasing the NaOH concentration to 6.09 M. The depletion of Al from the Raney Ni particles results in phase transformations and the metal/solution interfacial area increases with time. It is suggested that the electrodeposited nickel has a dominant influence on the hydrogen discharge since the electrocatalytic activity is practically independent of the leaching time. © 1990 Chapman and Hall Ltd.

引用

页码：855 / 863

页数：9

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