Bicyclic amidine-based deep eutectic solvents for efficient CO2 capture by multiple sites interaction

Acidity Scale in a Choline Chloride- and Ethylene Glycol-Based Deep Eutectic Solvent and Its Implication on Carbon Dioxide Absorption

“…CO 2 capture is among one of the most important applications of DESs. In this regard, various kinds of DESs, such as superbases − or basic IL-derived DESs, − have been prepared and tested. These DESs usually exhibit fairly good performance on CO 2 absorption.…”

Physicochemical Properties and Applications of Deep Eutectic Solvents for CO2 Capture

“…Fu et al [74] studied the absorption performance of CO 2 based on superbase DESs with single-site and double-site interactions. The effect of EG on the CO 2 absorption process has also been discussed where the molar ratio of HBA and HBD was expanded to a 1:4 ratio.…”

“…It was found that EG can be activated by DBNH + and can thus absorb CO 2 , realizing the coordinated absorption by hydroxyl and imino groups [74]. The CO 2 absorption capacity of superbase IL [HDBU][IM] mixed with three different cosolvents (ethylene glycol, propylene carbonate, and dimethyl ethers of polyethylene glycol (DEPG)) was studied by Wang et al [75].…”

CO2 capture by 1,2,3-triazole-based deep eutectic solvents: the unexpected role of hydrogen bonds

“…Recently, anion-functionalized rDESs have been developed to capture CO 2 , which exhibit more promising CO 2 absorption ability than amine-based rDESs. [27][28][29][30][31][32][33][34] In our previous work, we found that DESs formed by azolide-based ionic liquids (ILs) and ethylene glycol (EG) captured CO 2 through the reaction between CO 2 and EG, and [P 2222 ][Triz]-EG (1 : 2) can be regenerated at 70 1C. 28 Subsequently, Zeng et al investigated superbase-based DESs for carbon capture, and [DBUH][Im]-EG exhibited the regeneration at 70 1C.…”

“…28 Subsequently, Zeng et al investigated superbase-based DESs for carbon capture, and [DBUH][Im]-EG exhibited the regeneration at 70 1C. 29 Other superbase-based DESs have also been applied to capture CO 2 , [30][31][32][33] such as [DBUH][MLU]-EG, 31 [DBNH][MLU]-EG, 32 and DBN-BmimCl-Im. 33 Moreover, the chemisorbed CO 2 by DESs composed of 1-ethyl-3-methylimidazolium 2cyanopyrrolide ([Emim][2-CNpyr]) and EG can be desorbed even at 40 1C.…”