Title of article
Solubility of CO2 in imidazolium-based tetrafluoroborate ionic liquids
Author/Authors
YUHUAN CHEN، نويسنده , , Suojiang Zhang، نويسنده , , Xiaoliang Yuan، نويسنده , , Yanqiang Zhang، نويسنده , , Xiangping Zhang، نويسنده , , Wenbin Dai، نويسنده , , Ryohei Mori، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2006
Pages
3
From page
42
To page
44
Abstract
The solubility of CO2 in imidazolium ionic liquids (ILs), 1-butyl-3-methyl imidazolium tetrafluoroborate ([bmim][BF4]), 1-hexyl-3-methyl imidazolium tetrafluoroborate ([hmim][BF4]) and 1-octyl-3-methyl imidazolium tetrtafluoroborate ([omim][BF4]) was determined at 305–25 K and pressures from 1 to 9 MPa. The influence of chain length of alkyl substituents on the imidazolium cation on the solubility of CO2 was investigated. The differences in solubility with chain length are in the sequence [omim][BF4] > [hmim][BF4] > [bmim][BF4]. The solubility data were correlated by the extended Henryʹs law, and enthalpy, Gibbs free energy and entropy changes were obtained.
Keywords
Imidazolium tetrafluoroborate , Ionic liquids , CO2 , correlation , Solubility
Journal title
Thermochimica Acta
Serial Year
2006
Journal title
Thermochimica Acta
Record number
1197133
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