Electrodeposition of aluminum from AlCl3-triethylamine hydrochloride ionic liquid

IF 2.4 4区化学 Q3 CHEMISTRY, PHYSICAL

Ionics Pub Date : 2024-12-11 DOI:10.1007/s11581-024-05989-1

Xue Yang, Aimin Liu, Xin Zhang, Pingping Guan, Yubao Liu, Haitao Huang, Zhongning Shi

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引用次数: 0

Abstract

Aluminum chloride and triethylamine hydrochloride were employed in the synthesis of an AlCl₃-Et₃NHCl electrolyte. An aluminum sheet was utilized as the anode for the electrodeposition of metallic aluminum onto a copper substrate. This study aimed to investigate the effects of deposition potential on the morphology of the aluminum coating, the deposition mechanism, and the changes in Al(III) complex ions during the electrodeposition process. The results indicated that a deposition potential of − 0.3 V (vs. Al) produced aluminum coatings that were uniformly dense and securely adhered to the substrate. When electrodeposition occurred at − 0.5 V (vs. Al), the substrate surface exhibited aluminum nanowires with an approximate diameter of 367 nm. XRD analysis indicated a more pronounced (200) preferred orientation in the aluminum layer deposited at more negative potentials. Raman spectroscopy analysis detected the presence of AlCl₄⁻ and Al₂Cl₇⁻ anions in the AlCl₃-Et₃NHCl system before electrodeposition, followed by the formation of Al₃Cl₁₀⁻ complex ions in the system under potentiostatic control.

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来源期刊

Ionics 化学-电化学

CiteScore

5.30

自引率

7.10%

发文量

427

审稿时长

2.2 months

期刊介绍： Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.