Carbon Dioxide Capture by Superbase-Derived Protic Ionic Liquids


  • This work was supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. The authors also gratefully acknowledge the support of the National Natural Science Foundation of China (No. 20976151, No. 20704035, No. 20773109, and No. 20990221).


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CO2capture: Protic ionic liquids (PILs) from a superbase and fluorinated alcohol, imidazole, pyrrolinone, or phenol were designed to capture CO2 based on the reactivity of their anions to CO2. These PILs are capable of rapid and reversible capture of about one equivalent of CO2, which is superior to those sorption systems based on traditional aprotic ILs.