CO2 Absorption Mechanism by Diamino Protic Ionic Liquids (DPILs) Containing Azolide Anions

Protic ionic liquids have been regarded as promising materials to capture CO2, because they can be easily synthesized with an attractive capacity. In this work, we studied the CO2 absorption mechanism by protic (ILs) composed of diamino cations and azolide anions. Results 1H nuclear magnetic resonance (NMR), 13C NMR, 2-D NMR fourier-transform infrared (FTIR) spectroscopy tests indicated that reacted rather than The possible reaction pathway between azolide-based ILs is proposed, in which reacts primary amine group generated from deprotonation cation anion.