Electrochemical behavior of silver in 1-ethyl-3-methylimidazolium tetrafluoroborate molten salt

被引：87

作者：

Katayama, Y ^{[1
]}

Dan, S ^{[1
]}

Miura, T ^{[1
]}

Kishi, T ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2001年 / 148卷 / 02期

关键词：

D O I：

10.1149/1.1341243

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A room-temperature molten salt, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) with adequate purity was obtained simply by the reaction of 1-ethyl-3-methylimidazolium chloride and tetrafluoroboric acid. Silver tetrafluoroborate dissolves up to similar to0.2 mol dm(-3) in EMIBF4 at room temperature. Electrochemical deposition and dissolution of silver on a platinum electrode were found possible in EMIBF4 containing AgBF4. The reduction of monovalent silver species is electrochemically irreversible, the rate constant being estimated to be 1 X 10(-5) cm s(-1). The diffusion coefficient of Ag(I) is calculated to be 6 x 10(-7) cm(2) s(-1), suggesting that Ag(I) exists as a substantially bare cation (Ag+) in EMIBF4. (C) 2001 The Electrochemical Society. All rights reserved.

引用

页码：C102 / C105

页数：4

共 16 条

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