Efficient Selective CO2 Composite Sorbent from Amino Acid Ionic Liquids and Silica Gel: Insight on the CO2‐Binding Mechanism and in‐Pore Microscopic Viscosity by Means of 2H NMR | Sciact - CRIS-system of Boreskov Institute of Catalysis

Efficient Selective CO2 Composite Sorbent from Amino Acid Ionic Liquids and Silica Gel: Insight on the CO2‐Binding Mechanism and in‐Pore Microscopic Viscosity by Means of 2H NMR Full article

Journal

ChemSusChem
ISSN: 1864-5631 , E-ISSN: 1864-564X

Output data

Year: 2024, Article number : e202401736, Pages count : DOI: 10.1002/cssc.202401736

Funding (3)

1	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0032
2	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0036
3	German Research Foundation	LU 506/17-1 (Project 470038970)

A promising CO2 sorbent based on the [Emim][Gly]/silica gel composite has been studied. Absorption experiments have shown that the optimum loading of [Emim][Gly] ionic liquid in silica gel is 40 wt%. The 2-step process CO2 binding mechanism in [Emim][Gly] has been proposed based on the results of absorption experiments, 2H NMR spectroscopy and ab-initio calculations. The impact of CO2 on the microscopic viscosity and the dynamical melting of ionic liquid has been thoroughly investigated. 2H NMR spectroscopy has revealed that CO2 strongly binds cation and anion in [Emim][Gly], forcing them to move in a correlated fashion.

Sheshkovas A.Z. , Khudozhitkov A.E. , Veselovskaya J.V. , Kolokolov D.I. , Stepanov A.G. , Ludwig R.
Efficient Selective CO2 Composite Sorbent from Amino Acid Ionic Liquids and Silica Gel: Insight on the CO2‐Binding Mechanism and in‐Pore Microscopic Viscosity by Means of 2H NMR
ChemSusChem. 2024. e202401736 . DOI: 10.1002/cssc.202401736 PMID OpenAlex

Published online:

Oct 14, 2024

PMID:	39401288
OpenAlex:	W4403389423

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