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Efficient CO₂ absorption by azolide-based deep eutectic solvents

Author:
Cui, Ge, Lv, Meng, Yang, Dezhong
Source:
Chemical communications 2019 v.55 no.10 pp. 1426-1429
ISSN:
1364-548X
Subject:
Fourier transform infrared spectroscopy, absorption, anions, carbon dioxide, carbonates, chemical communication, chemical reactions, ethylene glycol, ionic liquids, nuclear magnetic resonance spectroscopy
Abstract:
Deep eutectic solvents formed by solid azolide ionic liquids and ethylene glycol (EG) can efficiently capture CO₂. Surprisingly, NMR and FTIR results indicated that CO₂ reacted with the –OH group of EG to form a carbonate species rather than reacting with azolide anions to form a carbamate species during the absorption process.
Agid:
6287790