Electrochemical investigation of quaternary ammonium/aluminum chloride ionic liquids

被引：25

作者：

Kim, K ^{[1
]}

Lang, C

Moulton, R

Kohl, PA

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[2] Sachem Inc, Austin, TX 78745 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2004年 / 151卷 / 08期

关键词：

D O I：

10.1149/1.1763772

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Quaternary ammonium salts have been studied as ionic liquids for electrochemical applications, including sodium batteries. Mixtures of benzyltrialkylammonium chlorides with chloroaluminate formed ionic liquids near room temperature. The maximum coulombic efficiency for the reduction and re-oxidation of sodium ions with benzyltriethylammonium chloride ionic liquid was over 91%. The self-discharge current for a sodium electrode in this ionic liquid was 32.7 and 18 muA/cm(2) by chronopotentiometry at tungsten electrodes at 6.37 and 2.55 mA/cm(2), respectively. These are comparable to values in 1-methyl-3-propylimidazolium chloride melt. Issues with the coulombic efficiencies and the self-discharge currents are discussed. (C) 2004 The Electrochemical Society.

引用

页码：A1168 / A1172

页数：5

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