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Carbon dioxide capture by aqueous ionic liquid solutions.

08:00 EDT 25th July 2017 | BioPortfolio

Summary of "Carbon dioxide capture by aqueous ionic liquid solutions."

Confined water in aqueous solutions of imidazolium-based ionic liquids (ILs) associated with acetate and imidazolate anions react reversibly with CO2 to yield bicarbonate. Three types of CO2 sorption in these "IL-aqueous solutions" were observed: physical, CO2-imidazolium adduct generation and bicarbonate formation (up to 1.9 mol of bicarbonate/mol of IL), resulting in a 10/1 mol/mol total absorption of CO2 relative to imidazolate anions in the presence of water 1/1000 (IL/water). These sorption values are higher than the classical alkanol amines or even alkaline aqueous solutions under similar experimental conditions.

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Name: ChemSusChem
ISSN: 1864-564X
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