Electrochemical studies on La-Co alloy film in acetamide-urea-NaBr melt system

被引：0
作者：
Guo, CY [1 ]
Wang, JC [1 ]
Chen, BQ [1 ]
Wang, JG [1 ]
机构：
[1] Qinghai Normal Univ, Dept Chem, Xining 810008, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2005年 / 15卷 / 05期
关键词：
La-Co alloy film; acetamide-urea-NaBr molten salt electrolyte; electroreduction; inductive co-deposition; rare earth elements;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The kinetics of La-Co alloy film in acetamide-urea-NaBr molten salt electrolyte at 353 K was investigated. It is shown that the reduction of Co(II) to Co is irreversible reaction with the transfer coefficient of 0.28 and the diffusion coefficient of 7.46 x 10(-5) cm(2)/s. While La(III) cannot be reduced to La directly; but can be codeposited with cobalt. The content of La in the uncrystallized La-Co alloy film increases with increasing cathodic overpotential, molar ratio of La3+ to Co2+ and electrolysis time as well, and reaches the maximum of 66.32%.
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页码：1190 / 1193
页数：4
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