Tuning the Basicity of Ionic Liquids for Equimolar CO2 Capture

被引:617
作者
Wang, Congmin [1 ,2 ]
Luo, Xiaoyan [1 ]
Luo, Huimin [4 ]
Jiang, De-en [2 ]
Li, Haoran [1 ]
Dai, Sheng [2 ,3 ]
机构
[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
[2] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA
[3] Univ Tennessee, Dept Chem, Knoxville, TN 37966 USA
[4] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA
基金
中国国家自然科学基金;
关键词
basicity; carbon capture; carbon dioxide; ionic liquids; sustainability; CARBON-DIOXIDE; ABSORPTION; SOLUBILITY; VISCOSITY; SO2;
D O I
10.1002/anie.201008151
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
What a catch! Basic ionic liquids (ILs) based on a phosphonium hydroxide derivative can be tuned for CO2 capture by varying the weak proton donors, which have different pKa values. The stability, absorption capacity, and absorption enthalpy of the ILs could be easily tuned: the best IL for CO2 capture has good stability (>300 °C), energy saving (ca. 56kJ mol-1), and equimolar absorption capability. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:4918 / 4922
页数:5
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