Efficient Selective CO2 Composite Sorbent from Amino Acid Ionic Liquids and Silica Gel: 2H NMR Spectroscopy Provides Insight on the CO2-Binding Mechanism and in-Pore Microscopic Viscosity Full article
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ChemSusChem
ISSN: 1864-5631 , E-ISSN: 1864-564X |
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| Output data | Year: 2025, Volume: 18, Number: 5, Article number : e202401736, Pages count : 12 DOI: 10.1002/cssc.202401736 | ||||
| Tags | reversible CO2 capture, sorption, silica gel, amino acid ionic liquids, 2H NMR | ||||
| Authors |
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| Affiliations |
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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) |
Abstract:
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.
Cite:
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: 2H NMR Spectroscopy Provides Insight on the CO2-Binding Mechanism and in-Pore Microscopic Viscosity
ChemSusChem. 2025. V.18. N5. e202401736 :1-12. DOI: 10.1002/cssc.202401736 WOS Scopus РИНЦ AN PMID OpenAlex
Efficient Selective CO2 Composite Sorbent from Amino Acid Ionic Liquids and Silica Gel: 2H NMR Spectroscopy Provides Insight on the CO2-Binding Mechanism and in-Pore Microscopic Viscosity
ChemSusChem. 2025. V.18. N5. e202401736 :1-12. DOI: 10.1002/cssc.202401736 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
| Published online: | Oct 14, 2024 |
| Published print: | Mar 3, 2025 |
Identifiers:
| Web of science: | WOS:001358086300001 |
| Scopus: | 2-s2.0-85208926011 |
| Elibrary: | 74844865 |
| Chemical Abstracts: | 2024:2562836 |
| PMID: | 39401288 |
| OpenAlex: | W4403389423 |
Citing:
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