吸收(声学)
离子液体
催化作用
化学
离子键合
乙醚
热稳定性
胺气处理
二氧化碳
功能群
有机化学
组合化学
材料科学
聚合物
离子
复合材料
作者
Yan Qu,Yifei Zhao,Dazhi Li,Jianmin Sun
标识
DOI:10.1016/j.cogsc.2022.100599
摘要
Ionic liquids (ILs), by virtue of their special properties such as functional designability and high thermal stability, have been widely used as absorbent to CO2 and catalyst for CO2 conversion. This review summarizes the recent developments from 2019 to 2021 on task-specific ionic liquids (TSILs) with modulable properties by introducing specific functional groups to anions or/and cations for CO2 absorption and conversion. The increase of basicity in TSILs by introducing amino/or amine groups or collaboration with multiple active sites of carboxyl, imidazolyl, pyridyl, and hydroxyl groups achieve high CO2 affinity and absorption capacity. To solve the defects of high viscosity, ether groups are introduced to TSILs for CO2 absorption. Besides, recent studies on CO2 thermal catalytic conversion focused on the construction of C–O bonds and C–N bonds are also summarized. The catalytic activity of TSILs is enhanced by improving the synergy effect of different functional groups on anions and cations. It is expected that this minireview will provide the understanding of the current developments and perspective for practical CO2 absorption and transformation by TSILs.
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