| 在含有饱和LaCl_3的AlCl_3-EMIC中电沉积铝 |
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| 引用本文： | 陈彦,颜灵光,李冰,马军德. 在含有饱和LaCl_3的AlCl_3-EMIC中电沉积铝[J]. 稀有金属材料与工程, 2009, 38(Z1) |
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| 作者姓名： | 陈彦 颜灵光 李冰 马军德 |
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| 作者单位： | 华东理工大学,上海,200237 |
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| 摘 要： | 将氰化镧溶解到AlCl3-EMIC室温离子液体(N=0.667)中,制备氯化镧饱和的AlCl3-EMIC离子液体;采用循环伏安法、计时电流法研究了在饱和LaCl3-AlCl3-EMIC中钨电极上的阴极过程和成核机理;并在不同的电流密度下制备了镀层,利用扫描电镜对镀层表面形貌进行了分析.结果表明:氯化镧的加入使得铝的沉积电位负移,由拟合曲线可知其成核过程为三维瞬时形核,在12 mA/cm2的电流密度下可以获得光滑致密的镀层,氯化镧的加入可以细化晶粒.
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| 关 键 词： | 计时电流法 成核机理 表面形貌 |
Electrodeposition of Al from LaCl_3-Saturated AlCl_3-EMIC Ambient Temperature Ionic Liquid |
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| Chen Yan,Yan Linguang,Li Bing,Ma Junde. Electrodeposition of Al from LaCl_3-Saturated AlCl_3-EMIC Ambient Temperature Ionic Liquid[J]. Rare Metal Materials and Engineering, 2009, 38(Z1) |
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| Authors: | Chen Yan Yan Linguang Li Bing Ma Junde |
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| Affiliation: | Chen Yan,Yan Linguang,Li Bing,Ma Junde (East China University of Science , Technology,Shanghai 200237,China) |
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| Abstract: | LaCl3-saturated AlCl3-EMIC [1-ethyl-3-methylimidazolium chloride] ionic liquid was prepared by dissolving LaCl3 into AlCl3-EMIC. The cyclic voltammetry and chronoamperometry were applied to analyze cathodic process and nuclear mechanism. The electrodeposition was performed from both AlCl3-EMIC melt and LaCl3-saturated AlCl3-EMIC melts and the deposits were examined by SEM. The results showed that aluminum deposition potential shifted negative with additive of LaCl3,and nucleation was involved. From the resu... |
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| Keywords: | LaCl3-AlCl3-EMIC |
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