Issue 17, 2012

Carbon-based ionogels: tuning the properties of the ionic liquidvia carbon–ionic liquid interaction

Abstract

The behavior of two ionic liquids (ILs), 1-ethyl-3-methylimidazolium dicyanamide [Emim][DCA] and 1-ethyl-3-methylimidazolium triflate [Emim][TfO], in (meso)porous carbonaceous hosts was investigated. Prior to IL incorporation into the host, the carbon matrix was thermally annealed between 180 and 900 °C to control carbon condensation and surface chemistry. The resulting materials have an increasing “graphitic” carbon character with increasing treatment temperature, reflected in a modified behavior of the ILs when impregnated into the carbon host. The two ILs show significant changes in the thermal behavior as measured from differential scanning calorimetry; these changes can be assigned to anion–π interaction between the IL anions and the pore wall surfaces of these flexible carbonaceous support materials.

Graphical abstract: Carbon-based ionogels: tuning the properties of the ionic liquid via carbon–ionic liquid interaction

Supplementary files

Article information

Article type
Paper
Submitted
08 Dec 2011
Accepted
20 Feb 2012
First published
20 Feb 2012

Phys. Chem. Chem. Phys., 2012,14, 5992-5997

Carbon-based ionogels: tuning the properties of the ionic liquid via carbon–ionic liquid interaction

R. Göbel, R. J. White, M. Titirici and A. Taubert, Phys. Chem. Chem. Phys., 2012, 14, 5992 DOI: 10.1039/C2CP23929A

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