期刊
ELECTROCHIMICA ACTA
卷 137, 期 -, 页码 470-475出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.06.044
关键词
Electroplating; Electrodeposition; Organic solvent bath
资金
- MEXT/JSPS [24360308]
This study investigated the use of novel organic solvent baths for the electrodeposition of aluminum at near-ambient temperatures. It was found that Al metal can be electrodeposited from baths that were composed of 1,3-dimethyl-2-imidazolidinone (DMI) and AlCl3, with an AlCl3 concentration greater than 50 mol%. IR spectroscopy indicated that Al2Cl7- ions were present in the baths that contained >50 mol% AlCl3, where the electrodeposition of Al occurs from Al2Cl7- ion. The DMI/AlCl3 baths with AlCl3 concentrations between 59 and 64 mol% retained a single liquid phase without precipitation at 25 degrees C and therefore, they can be used for Al electrodeposition near room temperature. Smooth Al films could be obtained by galvanostatic electrodeposition at 40 degrees C using a DMI/AlCl3 bath with the addition of a trace amount of 1,10-phenanthroline. (C) 2014 Published by Elsevier Ltd.
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