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 | Sciact - CRIS-система Института катализа

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 Научная публикация

Журнал

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

Вых. Данные

Год: 2025, Том: 18, Номер: 5, Номер статьи : e202401736, Страниц : 12 DOI: 10.1002/cssc.202401736

Ключевые слова

reversible CO2 capture, sorption, silica gel, amino acid ionic liquids, 2H NMR

Авторы

Sheshkovas Andrey Z. ¹ , Khudozhitkov Alexander E. ¹ , Veselovskaya Janna V ¹ , Kolokolov Daniil I. ¹ , Stepanov Alexander G. ¹ , Ludwig Ralf ²

Организации

1	Boreskov Institute of Catalysis, Novosibirsk, Novosibirsk, Russia
2	Universität Rostock, Institut für Chemie, Abteilung für Physikalische Chemie, Rostock, Germany

Информация о финансировании (3)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUR-2024-0032
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	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: 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 CAPlus PMID OpenAlex

Опубликована online:	14 окт. 2024 г.
Опубликована в печати:	3 мар. 2025 г.

Web of science:	WOS:001358086300001
Scopus:	2-s2.0-85208926011
РИНЦ:	74844865
Chemical Abstracts:	2024:2562836
PMID (PubMed):	39401288
OpenAlex:	W4403389423

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