Mechanistic study of Al electrodeposition from EMIC-AlCl3 and BMIC-AlCl3 electrolytes at low temperature
Mechanistic study of Al electrodeposition from EMIC-AlCl3 and BMIC-AlCl3 electrolytes at low temperature
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DOI：
10.1016/j.matchemphys.2013.09.033
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发表时间：
2014-01-15
影响因子：
4.6
通讯作者：
Reddy, Ramana G.
中科院分区：
文献类型：
--
作者：
Pradhan, Debabrata;Reddy, Ramana G.
在90 ± 2 ℃下从两种不同的离子液体电解质即1-乙基-3-甲基咪唑氯化物和AlCl 3（EMIC-AlCl 3）和1-丁基-3-甲基咪唑氯化物（BMIC-AlCl 3）中电沉积铝。在铜基体上获得了铝的球状形貌。为了评价反应机理，采用计时电流法研究。从计时电流分析，它被观察到，该反应是由瞬时三维扩散过程控制。发现对于EMIC-AlC 13和BMIC-AlC 13离子液体电解质，Al 2C 7-的扩散系数（D）分别为5.2-6.6 × 10（-11）m（2）s（-1）和2.2 × 10（-11）m（2）s（-1）。还通过扫描电子显微镜确认了铜上电沉积铝的核密度，其中观察到均匀分布的铝结节。(C)2013爱思唯尔有限公司版权所有。
Aluminum was electrodeposited from two different ionic liquid electrolytes namely; 1-ethy1-3-methylimidazolicum chloride and AlCl3 (EMIC-AlCl3) and 1-butyl-3-methylimidazolium chloride (BMIC-AlCl3) at 90 2 C. Nodular morphology of aluminum was obtained at the copper substrate. To evaluate the reaction mechanism, chronoamperometric study was adopted. From the chronoamperometric analysis, it was observed that the reaction was controlled by instantaneous three-dimensional diffusion process. The diffusion coefficient (D) of Al2C7- was found to be 5.2-6.6 x 10(-11) m(2) s(-1) and 2.2 x 10(-11) m(2) s(-1) for EMIC-AlC13 and BMIC-AlC13 ionic liquid electrolytes, respectively. The nuclei density of electrodeposited aluminum on the copper was also confirmed by scanning electron microscope wherein uniformly distributed aluminum nodules were observed. (C) 2013 Elsevier B.V. All rights reserved.