Is basicity the sole criterion for attaining high carbon dioxide capture in deep-eutectic solvents?

Abstract

Compared to the large |α–β| in DESs, a relatively small |α–β| brings “synergistic interaction“ into play and allows the donor and acceptor components to react efficiently with CO2 molecules in DES.

Probing the structural features and the micro-heterogeneity of various deep eutectic solvents and their water dilutions by the photophysical behaviour of two fluorophores

“…This effect was also observed with other acid liquids where the properties were dependent on the pKa of the components but with different entities compared to the properties of the pure HBD, suggesting a different availability of the molecule to act in its own way [28]. The same effect exerted by the intimacy of the couple was observed in studies regarding the CO2 capture driven by these innovative solvents [29].…”

Asymmetric Organocatalysis in Deep Eutectic Solvents

“…Generally, the catalytic activity of the DESs is dependent on the catalytic properties of the molecules forming them [27] . However, the mechanisms follow different rules from ILs, since the interactions between the components have a higher complexity compared to the ones between the components of ILs [28] . This is because not only electrostatic interactions (or the weakening of them) occur in DESs but also H‐bonds which have a higher directionality and specificity [29] …”

“…[27] However, the mechanisms follow different rules from ILs, since the interactions between the components have a higher complexity compared to the ones between the components of ILs. [28] This is because not only electrostatic interactions (or the weakening of them) occur in DESs but also H-bonds which have a higher directionality and specificity. [29] The case of chiral DESs and their use as organocatalytic green liquids is a peculiar and relevant case of catalysis operated by this innovative class of liquids.…”

Effective and Selective Extraction of Quercetin from Onion (Allium cepa L.) Skin Waste Using Water Dilutions of Acid-Based Deep Eutectic Solvents

“…For the same reasons of the properties of the constituting components, DESs can also exhibit appreciable catalytic properties [ 8 , 27 , 28 , 29 , 30 , 31 , 32 ]. The effect seems to depend on the “availability” of the molecule forming the DES in exerting the catalytic action [ 33 , 34 , 35 ].…”