Preparation of Y-Co alloy film in acetamide-urea-NaBr melt
(1. Department of Chemistry,Qinghai Normal University, Xi′ning 810008, China;
2. School of Chemistry and Chemical Engineering, Zhongshan University,
Guangdong, Guangzhou 510275, China)
2. School of Chemistry and Chemical Engineering, Zhongshan University,
Guangdong, Guangzhou 510275, China)
Abstract: Electroreduction of Co(Ⅱ) to Co in acetami de-urea-NaBr melt at 353K is irreversible in one step. α and D are determined as 0.23 and 2.24×10-7cm2·
s-1. Y(Ⅲ) is not reduced to Y alone, but can be inductively codeposited with Co(Ⅱ). The amorphous Y-Co alloy film was obtained by potentiostatic electrolysis. The content of yttrium in the yettrium-cobalt deposits changes with the cathode potential, molar ratio of Y(Ⅲ)/Co(Ⅱ) and the electrolysis time, and can reach 83.93%.
附件:yw2002-06-40
s-1. Y(Ⅲ) is not reduced to Y alone, but can be inductively codeposited with Co(Ⅱ). The amorphous Y-Co alloy film was obtained by potentiostatic electrolysis. The content of yttrium in the yettrium-cobalt deposits changes with the cathode potential, molar ratio of Y(Ⅲ)/Co(Ⅱ) and the electrolysis time, and can reach 83.93%.
附件:yw2002-06-40
Key words: acetamide-urea-NaBr; electroreduction; inductive codeposition; Y-Co; amorphous alloy;