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Title: Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low-Concentration CO2 by Ionic Liquids

Journal Article · · Angewandte Chemie (International Edition)

Here, a novel strategy based on the concept of preorganization and cooperation has been designed for a superior capacity to capture low–concentration CO2 by imide–based ionic liquids. By using this strategy, for the first time, an extremely high gravimetric CO2 capacity of up to 22 wt % (1.65 mol mol–1) and excellent reversibility (16 cycles) have been achieved from 10 vol. % of CO2 in N2 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 CO2 and multiple active sites in the preorganized anion are the driving force for the superior CO2 capacity and excellent reversibility.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1462885
Journal Information:
Angewandte Chemie (International Edition), Vol. 56, Issue 43; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 92 works
Citation information provided by
Web of Science

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Cited By (10)

Designing amino-based ionic liquids for improved carbon capture: One amine binds two CO 2 journal October 2018
Efficient capture of CO 2 from flue gas at high temperature by tunable polyamine‐based hybrid ionic liquids journal September 2019
Correspondence on “Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low‐Concentration CO 2 by Ionic Liquids” journal December 2018
Correspondence on “Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low‐Concentration CO 2 by Ionic Liquids” journal January 2019
Reply to the Correspondence on “Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low‐Concentration CO 2 by Ionic Liquids” journal January 2019
Development of High‐Capacity and Water‐Lean CO 2 Absorbents by a Concise Molecular Design Strategy through Viscosity Control journal November 2019
Choline-based ionic liquids for CO2 capture and conversion journal November 2018
Enhanced CO 2 capture by reducing cation–anion interactions in hydroxyl-pyridine anion-based ionic liquids journal January 2019
Ether-functionalization of monoethanolamine (MEA) for reversible CO 2 capture under solvent-free conditions with high-capacity and low-viscosity journal January 2020
Reply to the Correspondence on “Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low‐Concentration CO 2 by Ionic Liquids” journal December 2018