乙酰胺-尿素-NaBr熔体中Nd-Co合金的电化学制备  

Electrode position of Nd-Co alloy film in acetamide-urea-NaBr melt

作　　者：王金贵[1] 王建朝[1] 陈必清[1] 郭承育[1] 

机构地区：[1]青海师范大学化学系,青海西宁810008

出　　处：《西北师范大学学报（自然科学版）》2007年第6期60-63,83,共5页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(50264004)

摘　　要：在353 K的乙酰胺-尿素-NaBr熔体中,Co(Ⅱ)一步不可逆还原为金属Co,Nd(Ⅲ)不能单独还原为Nd,但可以被Co(Ⅱ)诱导而共沉积.由恒电位电解法得到非晶态的Nd-Co合金,Nd的含量随阴极电位的负移、Nd(Ⅲ)/Co(Ⅱ)摩尔比增大及电解时间延长而增大.Electro reduction of Co^2＋ to Co in acetamide-urea-NaBr melt at 353 K is irreversible in one step. Nd^3＋ is not reduced to Nd alone, but can be inductively code posited with Co^2＋ . The amorphous Nd-Co alloy films are obtained by potent biostatic electrolysis. The content of Nd in the Nd-Co deposits changes with the cathode potential, molar ratio of Nd^3＋/Co^2＋ and the electrolysis time. Crystalline ally is obtained after heat treatment of the deposit .

关 键 词：乙酰胺-尿素-NABR熔体 电还原 诱导共沉积 Nd-Co合金膜 稀土 

分 类 号：O641.4[理学—物理化学]