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%.

引用

页码：1190 / 1193

页数：4

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