Electrodeposition of Ni-Mg alloys from 1-butyl-3-methylimidazolium chloride/glycerin eutectic-based ionic liquid

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• 作者：Cunying Xu ; Jiwen Zhao ; Yixin Hua ; Qibo Zhang
• 关键词：Ionic liquid ; Ni ; Mg alloy ; Electrodeposition ; Nucleation/growth
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：20
• 期：3
• 页码：793-800
• 全文大小：1,157 KB
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• 作者单位：Cunying Xu (1) (2)
  Jiwen Zhao (1)
  Yixin Hua (1) (2)
  Qibo Zhang (1) (2)
  
  1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, People’s Republic of China
  2. State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization, Kunming University of Science and Technology, Kunming, 650093, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Analytical Chemistry
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  Condensed Matter
  Electronic and Computer Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1433-0768

文摘

The electrodeposition of Ni-Mg alloys in 1-butyl-3-methylimidazolium chloride/glycerin (BMIC/GL, 1:1 M ratio) eutectic-based ionic liquid containing 0.1 M MgCl₂ and 0.05 M NiCl₂ was investigated. It is found by cyclic voltammograms and analysis of the chronoamperometric transient that Mg can be co-deposited with Ni under the inducement effect of Ni in this solvent, and the co-electrodeposition of Ni and Mg on a glassy carbon electrode is a diffusion-controlled process, which follows an instantaneous nucleation and three-dimensional growth pattern. In addition, the composition, surface morphology, structure, and property for hydrogen storage of Ni-Mg alloy deposits were characterized by inductively coupled plasma atomic emission spectrometry (ICP-AES), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopic (SEM), and charge and discharge test, respectively. The deposition potential plays a central role in controlling the composition, surface morphology as well as the electrochemical hydrogen storage capacity of the resultant Ni-Mg alloys. The alloy obtained at −1.2 V (vs. Ag) is a two-phase mixture consisting of a solid solution and an amorphous phase, which exhibits the best electrochemical capacity of 81.6 mAh g−1.