EMIIm and EMIBeti on aluminum - Anodic stability dependence on lithium salt and propylene carbonate

被引：36
|
作者：
Goldman, JL [1 ]
McEwen, AB [1 ]
机构：
[1] Covalent Associates Inc, Woburn, MA 01801 USA
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 1999年 / 2卷 / 10期
关键词：
D O I：
10.1149/1.1390883
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The two anions bis(trifluoromethylsulfonyl)imide (Im) and bis(perfluoroethylsulfonyl)imide (Beti) display similar passivation on aluminum in solvent-free ionic liquids. The addition of 10% propylene carbonate to the ionic liquids EMIIm and EMIBeti (EMI: 1-ethyl-3-methyl imidazolium) introduces oxidative corrosion, with the Beti anion being 0.7 V more stable. The oxidation peaks are shifted to more positive potentials (ca. 0.1 V) with the addition of the lithium salt. The results from cyclic voltammetry and chronoamperometric experiments indicate propylene carbonate to be an active participant in the corrosion process on aluminum. (C) 1999 The Electrochemical Society. S1099-0062(99)02-039-8. All rights reserved.
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页码：501 / 503
页数：3
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