乙酰胺-尿素-NaBr熔体中Sm-Co合金的电化学制备  

Electrodeposition of Sm-Co alloy film in acetamide-urea-NaBr melt

作　　者：刘青[1] 张素珍 王建朝[1] 蒲丽[1] 李冰[1] 

机构地区：[1]青海师范大学化学系,青海西宁810008 [2]青海省地矿中心实验室,青海西宁810008

出　　处：《青海师范大学学报（自然科学版）》2008年第2期57-62,共6页Journal of Qinghai Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50264004)

摘　　要：利用循环伏安法,研究在353K的乙酰胺-尿素-NaBr熔体中,Co(Ⅱ)还原为金属Co是一步不可逆过程,Sm(Ⅲ)不能单独还原为Sm,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Sm-Co合金,Sm的含量随阴极电位的负移,Sm(Ⅲ)/Co(Ⅱ)摩尔比增大而增大.The cyclic voltammetry method were used to study electroreduction of Co^2＋ to Co in acetamide - urea- NaBr melt at 353K is irreversible in one step . Sm^3＋ is not reduced to Sm alone , but can be inductively codeposited with Co^2＋ . The amorphous Sm- Co alloy films were obtained by potentiostatic electrolysis . The contene of Sm in the Sm - Co deposits changes with the cathode potential , molar ratio of Sm^3 ＋/Co^2 ＋ . 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 Sm-Co合金膜 

分 类 号：O614.33[理学—无机化学]