Low-viscosity and low-melting point asymmetric trialkylsulfonium based ionic liquids as potential electrolytes

被引：79

作者：

Fang, Shaohua ^{[1
]}

Yang, Li ^{[1
]}

Wei, Chao ^{[1
]}

Peng, Chengxin ^{[1
]}

Tachibana, Kazuhiro ^{[2
]}

Kamijima, Kouichi ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China

[2] Yamagata Univ, Fac Engn, Dept Chem & Chem Engn, Yamagata 9928510, Japan

[3] Hitachi Chem Co Ltd, Ibaraki 3178555, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 11期

基金：

国家高技术研究发展计划(863计划);

关键词：

ionic liquids; asymmetric trialkylsulfonium cation; electrolytes;

D O I：

10.1016/j.elecom.2007.09.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nine new ionic liquids based on small asymmetric trialkylsulfonium cations with TFSI- anion were prepared and characterized. Physical and electrochemical properties of these ionic liquids, including melting point, thermal stability, viscosity, conductivity and electrochemical window were determined. Reducing symmetry of cations reduces the melting points of these ILs. Some of these hydrophobic ionic liquids showed low-viscosity and low-melting point characteristics. The viscosities Of S223TFSI, S221ITFSI and S123TFSI were 33, 36 and 39 mPa s at 25 degrees C, respectively. Electrochemical and thermal stabilities of these ILs permitted them to become promising electrolytes used in electrochemical devices. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2696 / 2702

页数：7

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