中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 12 No. 5 October 2002 |
Preparation of Gd-Co alloy film in acetamide-urea-NaBr melt
XU Chang-wei（徐常威）, PAN Wen-jie (潘文杰),
YUAN Ding-sheng（袁定勝），TONG Ye-xiang(童葉翔),
LIU Guan-kun（劉冠昆）
YUAN Ding-sheng（袁定勝），TONG Ye-xiang(童葉翔),
LIU Guan-kun（劉冠昆）
（School of Chemistry and Chemical Engineering, Zhongshan University,
Guangzhou 510275, China）
Abstract:Electroreduction of Co(Ⅱ) to metallic Co in acetamide-urea-NaBr melt at 353K is irreversible in one step. Gd（Ⅲ) is not reduced to Gd alone, but can be inductively codeposited with Co(Ⅱ). The amorphous Gd-Co alloy films were obtained by potentiostatic electrolysis. With the cathode potential shifting to negative direction, the content of gadolinium in the alloy increases and can get to 65.89% (mass fraction). The additive of Na2EDTA can make the diameter of the particles of crystalline alloy smaller and change the shape of particles.
Key words: acetamide-urea-NaBr; electroreduction; inductive codeposition; amorphous alloy
