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Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low-Concentration CO2 by Ionic Liquids.
- Source :
- Angewandte Chemie International Edition; 10/16/2017, Vol. 56 Issue 43, p13293-13297, 5p
- Publication Year :
- 2017
-
Abstract
- A novel strategy based on the concept of preorganization and cooperation has been designed for a superior capacity to capture low-concentration CO<subscript>2</subscript> by imide-based ionic liquids. By using this strategy, for the first time, an extremely high gravimetric CO<subscript>2</subscript> capacity of up to 22 wt % (1.65 mol mol<superscript>−1</superscript>) and excellent reversibility (16 cycles) have been achieved from 10 vol. % of CO<subscript>2</subscript> in N<subscript>2</subscript> when using an ionic liquid having a preorganized anion. Through a combination of quantum-chemical calculations and spectroscopic investigations, it is suggested that cooperative interactions between CO<subscript>2</subscript> and multiple active sites in the preorganized anion are the driving force for the superior CO<subscript>2</subscript> capacity and excellent reversibility. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 56
- Issue :
- 43
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 125591492
- Full Text :
- https://doi.org/10.1002/anie.201706280