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二甲基甲酰胺中电沉积制备钐钴合金 被引量:5

Preparation of Sm-Co Alloy by Electrodeposition in DMF Solution
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摘要 Electrodeposition of Sm-Co alloy in DMF solution was studied by cyclic voltammetry and potentiostatic deposition at room temperature. The results show that small amount of water in a solution of Sm(NO 3) 3+CoCl 2+DMF blocked the electrodeposition of Sm-Co due to the formation of nonconductive Sm(OH) 3 film on the cathode surface. Citric acid could buffer the pH change and inhibit the precipitation of Sm(OH) 3 on the cathode surface which makes the co-deposition of Sm and Co easy. Potentiostatic deposition was carried out on copper electrode in Sm(NO 3) 3+CoCl 2+Citric acid+DMF solution and Sm-Co alloy films were obtained where the content of Sm could be as high as 57 56%. Electrodeposition of Sm-Co alloy in DMF solution was studied by cyclic voltammetry and potentiostatic deposition at room temperature. The results show that small amount of water in a solution of Sm(NO 3) 3+CoCl 2+DMF blocked the electrodeposition of Sm-Co due to the formation of nonconductive Sm(OH) 3 film on the cathode surface. Citric acid could buffer the pH change and inhibit the precipitation of Sm(OH) 3 on the cathode surface which makes the co-deposition of Sm and Co easy. Potentiostatic deposition was carried out on copper electrode in Sm(NO 3) 3+CoCl 2+Citric acid+DMF solution and Sm-Co alloy films were obtained where the content of Sm could be as high as 57 56%.
出处 《应用化学》 CAS CSCD 北大核心 2002年第1期88-90,共3页 Chinese Journal of Applied Chemistry
基金 广东省自然科学基金资助项目 ( 96 0 0 0 2 )
关键词 稀土 恒电位电沉积 钐钴合金 柠檬酸 二甲基甲酰胺 制备 硝酸钐 Sm-Co alloy,potentiostatic deposition,citric acid,dimethylformamide
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  • 1屠振密,电镀合金原理与工艺,1993年
  • 2中山大学金属系,稀土物理化学常数,1978年,36页

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