Aqueous mixture viscosities of phenolic deep eutectic solvents

Haghbakhsh, Reza; Duarte, Ana Rita C.; Raeissi, Sona

doi:10.1016/j.fluid.2021.113290

Cited by 7 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the increasing temperature, the viscosity values showed a monotonic decrease for all mixtures and the systems tend to exhibit a more ideal behavior, with weaker associations within the mixture. This observation is consistent with what the current literature reported. ,, The temperature dependence of the viscosities was found to follow the Vogel–Fulcher–Tammann (VFT) expression given in eq which is consistent with DES-like mixtures containing nonspherical molecules/ions or having obstructed molecular rotation in the melt. η = A exp ( B T − T 0 ) where η is measured viscosity at T temperature and A , B, and T 0 are recovered VFT parameters reported in Table S4.…”

Section: Resultssupporting

confidence: 90%

“…This observation is consistent with what the current literature reported. 10,41,42 The temperature dependence of the viscosities was found to follow the Vogel−Fulcher−Tammann (VFT) expression given in eq 4 which is consistent with DES-like mixtures containing nonspherical molecules/ions or having obstructed molecular rotation in the melt. i k j j j j j y…”

Section: Viscositysupporting

confidence: 62%

See 1 more Smart Citation

Thermal and Physical Properties of CO₂-Reactive Binary Mixtures

Cagli,

Liu,

Khokhar

et al. 2024

J. Chem. Eng. Data

View full text Add to dashboard Cite

Binary solvent mixtures based on 1-ethyl-3-methylimidazolium 2-cyanopyrrolide, , an ionic liquid (IL), and a series of hydrogen bond donors (HBDs) including ethylene glycol (EG), propylene glycol (PG), and monoethanolamine (MEA) were characterized in terms of temperature-dependent densities and viscosities along with their thermal stability and CO 2 absorption−desorption capability. NMR and FTIR were employed to observe the effect of the IL/HBD composition on intermolecular interactions. Among the investigated mixtures, IL/EG (1:2) showed the most efficient absorption−desorption performance and thermal stability. Though IL/PG and IL/EG had similar CO 2 absorption capacities, the IL/PG exhibited the highest viscosity, which limited the CO 2 transport in the solvent. The IL/MEA solvent possesses significant CO 2 absorbance capability; however, the strong binding energy between MEA and CO 2 and the increased viscosity during absorption led to difficulties in CO 2 desorption. This study highlights the modification of intermolecular interactions in IL/HBD binary mixtures with respect to the choice of HBDs, reflected by their distinct physical properties and CO 2 binding behavior.

show abstract