Highly efficient absorption of carbon dioxide by EG-assisted DBU-based deep eutectic solvents

Fu, Hui; Wang, Xinyu; Sang, Haina; Liu, Jinhe; Lin, Xufeng; Zhang, Longli

doi:10.1016/j.jcou.2020.101372

Cited by 27 publications

(21 citation statements)

References 34 publications

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“…[DBUH][MLU]-EG DESs, reported by Fu et al 32 We think the findings of our work provide new insights about the interactions between CO 2 and functional DESs, which will be beneficial to the design and applications of DESs in the future.…”

Section: Conflicts Of Interestsupporting

confidence: 56%

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO₂ capture

Wang

Huang

et al. 2022

Chem. Commun.

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Section: Conflicts Of Interestsupporting

confidence: 56%

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO₂ capture

Wang

Huang

et al. 2022

Chem. Commun.

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“…In this case, the CO 2 solubility reached up to 5 mol/kg. Some DESs have been made by mixing ILs ethylene glycol and 4-methylimidazole ( Fu et al, 2021b ; Wang et al, 2021c ; Lee et al, 2021 ; Wang et al, 2022a ).…”

Section: Literature Survey Data Collection Properties Perdition and I...mentioning

confidence: 99%

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

Foorginezhad

2022

Front. Chem.

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CO2 capture is essential for both mitigating CO2 emissions and purifying/conditioning gases for fuel and chemical production. To further improve the process performance with low environmental impacts, different strategies have been proposed, where developing liquid green absorbent for capturing CO2 is one of the effective options. Ionic liquids (IL)/deep eutectic solvents (DES) have recently emerged as green absorbents with unique properties, especially DESs also benefit from facile synthesis, low toxicity, and high biodegradability. To promote their development, this work summarized the recent research progress on ILs/DESs developed for CO2 capture from the aspects of those physical- and chemical-based, and COSMO-RS was combined to predict the properties that are unavailable from published articles in order to evaluate their performance based on the key properties for different IL/DES-based technologies. Finally, top 10 ILs/DESs were listed based on the corresponding criteria. The shared information will provide insight into screening and further developing IL/DES-based technologies for CO2 capture.

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“…Among them, functional DESs which could chemically absorb CO 2 have received much attention because of their high capacities. The chemical absorption of CO 2 by DESs depends on the chemical reactions between CO 2 and functional groups of DESs [12][13][14][15][16]. Therefore, understanding the reaction mechanisms between CO 2 and functional groups of DESs is important to the design of efficient DESs for CO 2 capture.…”

Section: Introductionmentioning

confidence: 99%

CO2 Absorption Mechanism by the Deep Eutectic Solvents Formed by Monoethanolamine-Based Protic Ionic Liquid and Ethylene Glycol

Cheng

Gao

et al. 2022

IJMS

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Deep eutectic solvents (DESs) have been widely used to capture CO2 in recent years. Understanding CO2 mechanisms by DESs is crucial to the design of efficient DESs for carbon capture. In this work, we studied the CO2 absorption mechanism by DESs based on ethylene glycol (EG) and protic ionic liquid ([MEAH][Im]), formed by monoethanolamine (MEA) with imidazole (Im). The interactions between CO2 and DESs [MEAH][Im]-EG (1:3) are investigated thoroughly by applying 1H and 13 C nuclear magnetic resonance (NMR), 2-D NMR, and Fourier-transform infrared (FTIR) techniques. Surprisingly, the results indicate that CO2 not only binds to the amine group of MEA but also reacts with the deprotonated EG, yielding carbamate and carbonate species, respectively. The reaction mechanism between CO2 and DESs is proposed, which includes two pathways. One pathway is the deprotonation of the [MEAH]+ cation by the [Im]− anion, resulting in the formation of neutral molecule MEA, which then reacts with CO2 to form a carbamate species. In the other pathway, EG is deprotonated by the [Im]−, and then the deprotonated EG, HO-CH2-CH2-O−, binds with CO2 to form a carbonate species. The absorption mechanism found by this work is different from those of other DESs formed by protic ionic liquids and EG, and we believe the new insights into the interactions between CO2 and DESs will be beneficial to the design and applications of DESs for carbon capture in the future.

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Highly efficient absorption of carbon dioxide by EG-assisted DBU-based deep eutectic solvents

Cited by 27 publications

References 34 publications

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO₂ capture

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO₂ capture

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

CO2 Absorption Mechanism by the Deep Eutectic Solvents Formed by Monoethanolamine-Based Protic Ionic Liquid and Ethylene Glycol

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Highly efficient absorption of carbon dioxide by EG-assisted DBU-based deep eutectic solvents

Cited by 27 publications

References 34 publications

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO2 capture

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO2 capture

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

CO2 Absorption Mechanism by the Deep Eutectic Solvents Formed by Monoethanolamine-Based Protic Ionic Liquid and Ethylene Glycol

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Product

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Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO₂ capture

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO₂ capture