期刊
ELECTROCHIMICA ACTA
卷 160, 期 -, 页码 82-88出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.02.020
关键词
Al-containing ionic liquid; Al electroplating; Al-containing cations; neutral ligand
资金
- Strategic Environmental research and Development Program (SERDP) [WP2316]
A new ionic liquid (IL) based on a neutral ligand, 4-propylpyridine, is obtained via complexation with AlCl3. It is found that the asymmetric cleavage of AlCl3 generates AlCl2+ and AlCl4, and the former is coordinated by 4-propylpyridine to produce the Al-containing cations ([AlCl2(4-Pr-Py)(2)](+)). The AlCl3/4-propylpyridine IL with a molar ratio of 1.3/1 is highly fluidic with a viscosity of 42.8 mPa s and an ionic conductivity of 5.0 x 10 x S-4/cm at room temperature. In contrast to conventional ILs for electroplating aluminum in which the electrochemically active species are Al-containing anions (for example Al2Cl7), this new IL has an Al-containing cation as the electroactive species, which is beneficial to electrodeposition of aluminum. (C) 2015 Elsevier Ltd. All rights reserved.
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