Physically Gelled Ionic Liquids: Solid Membrane Materials with Liquidlike CO2 Gas Transport

被引：111

作者：

Voss, Bret A. ^{[1
]}

Bara, Jason E. ^{[1
,2
]}

Gin, Douglas L. ^{[1
,2
]}

Noble, Richard D. ^{[1
]}

机构：

[1] Univ Colorado, Dept Biol & Chem Engn, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 14期

关键词：

SENSITIZED SOLAR-CELLS; SEPARATION MEMBRANES; PERMEABILITY; GELATION; CAPTURE;

D O I：

10.1021/cm900726p

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new type of RTIL (organic salts) materials for CO 2 separation applications based on physical gelation of a common RTIL, 1-hexyl-3- methylimidazolium bis-(trifluoromethylsulfonyl)imide [C 6mim][Tf 2N], with a small weight percent of the low-molecular weight gelator (LMOG), 12-hydroxystearic acid was investigated. [C 6mim][Tf 2N] was selected for the gas separation study because it is a commonly available and easily synthesized RTIL with inherent solubility selectivity for CO 2 over N 2. The solubility of gas in the gel and neat [C 6mim][Tf 2N] was determined for CO 2 and N 2 using a gas adsorption unit. This initial study successfully demonstrates that commercial LMOGs can be used to form stable RTIL gels that simultaneously exhibit liquidlike gas transport properties and the solid mechanical properties desired for membrane applications.

引用

页码：3027 / 3029

页数：3

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