Current efficiency and kinetics of cobalt electrodeposition in acid chloride solutions. Part II: The influence of chloride and sulphate concentrations

被引：17
|
作者：
Kongstein, O. E. [1 ]
Haarberg, G. M. [1 ]
Thonstad, J. [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2007年 / 37卷 / 06期
关键词：
cobalt; current-efficiency; electrodeposition; overpotential;
D O I：
10.1007/s10800-007-9298-0
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The influence of cobalt chloride concentration, total chloride concentration and sulphate in the electrolyte on cobalt deposition were studied. The current efficiency increased and the overpotential for electrodeposition of cobalt decreased with increasing cobalt chloride concentration. Only minor changes were observed with addition of sodium chloride to the cobalt chloride solution. Sulphate electrolyte resulted in lower current efficiency and higher overpotential for electrodeposition when compared to a similar cobalt chloride electrolyte.
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页码：675 / 680
页数：6
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