New‐Generation Carbon‐Capture Ionic Liquids Regulated by Metal‐Ion Coordination. Issue 2 (18th December 2021)

• Record Type: Journal Article
• Authors: Suo, Xian; Yang, Zhenzhen; Fu, Yuqing; Do‐Thanh, Chi‐Linh; Maltsev, Dmitry; Luo, Huimin; Mahurin, Shannon M.; Jiang, De‐en; Xing, Huabin; Dai, Sheng
• Is Part Of: ChemSusChem. Volume 15:Issue 2(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-12-18
• Subjects: carbon capture -- CO2 chemisorption -- ionic liquids -- metal-ion coordination -- stability constant; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202102136
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: Development of efficient carbon capture‐and‐release technologies with minimal energy input is a long‐term challenge in mitigating CO2 emissions, especially via CO2 chemisorption driven by engineered chemical bond construction. Herein, taking advantage of the structural diversity of ionic liquids (ILs) in tuning their physical and chemical properties, precise reaction energy regulation of CO2 chemisorption was demonstrated deploying metal‐ion‐amino‐based ionic liquids (MAILs) as absorbents. The coordination ability of different metal sites (Cu, Zn, Co, Ni, and Mg) to amines was harnessed to achieve fine‐tuning on stability constants of the metal ion‐amine complexes, acting as the corresponding cations in the construction of diverse ILs coupled with CO2 ‐philic anions. The as‐afforded MAILs exhibited efficient and controllable CO2 release behavior with great reduction in energy input and minimal sacrifice on CO2 uptake capacity. This coordination‐regulated approach offers new prospects for the development of ILs‐based systems and beyond towards energy‐efficient carbon capture technologies. Abstract : You've got MAIL : Reaction energy regulation of CO2 chemisorption is achieved deploying metal‐ion‐amino‐based ionic liquids (MAILs) as absorbents. Taking advantage of the coordination ability of different metal sites (Cu, Zn, Co, Ni, and Mg) to amines, fine‐tuning on stability constants of the metal ion‐amine complexes leads to efficient CO2 release with great reduction in energy input and minimal sacrifice on CO2 uptake capacity.