Tailoring intermolecular interactions to develop a low-temperature electrolyte system consisting of 1-butyl-3-methylimidazolium iodide and organic solvents

Abstract

Optimized intermolecular interactions by incorporating the organic solvents GBL and PC with an IL lead to enhancements in thermal and transport properties.

An experimental and computational study of a low-temperature electrolyte design utilizing iodide-based ionic liquid and butyronitrile

“…[66][67][68] Such an observation also stands true in iodide-based IL/organic solvent mixtures, where the imidazolium head of [BMIM] + was discovered to interact with the carbonyl groups of gamma-butyrolactone and propylene carbonate molecules via hydrogen bonding and contributed to shifting the glass transition towards a lower temperature. 49 A similar intermolecular interaction is also anticipated between the lone-pair electrons of the nitrile functional group from ACN and BuCN and [BMIM] + cations, which have been observed experimentally and validated through computational simulations. 69,70 Consequently, the overall cohesive energies of the mixture solutions were modified, resulting in decreasing T g as a function of increasing nitrile solvent concentration, where a lower T g corresponds to reduced cohesive energy of a material system.…”

“…With BuCN, the triiodide reduction exhibited even slower kinetics with a shift of 0.13 V in the cathodic peak potential when increasing the scan rate from 25 to 200 mV s −1 , which is 0.3 V more than that of the previously reported [BMIM][I]/PC/LiI-5/90/5. 49 Despite a lower electroactivity of triiodide for reduction, the appearance of cathodic current peaks from 10-200 mV s −1 informed a transition in the governing mechanism of output current from kinetics to transport, which fulfills the fundamental working principle of MET sensors. Moreover, Van Duyne and Reilley have employed BuCN as the media for lowtemperature electrochemical investigation due to desirable low-temperature properties, demonstrating its promise to host electroactive species for ultralow temperature operations.…”

“…Similar to previous observations from the developed systems with organic solvents, gradual reductions of generated current were observed if scanning was performed beyond the EW limits. 49 To be specific, anodic overpotential resulted in the accumulation of an oxidation product, which appeared as observable brown traces diffusing from the electrode surface. It is known that iodide electrochemistry often undergoes two oxidation steps, first iodide to triiodide and then followed by triiodide to iodine, in organic solvents due to the stabilization effect from the solvation between the solvent molecule and triiodide.…”

Correlation Analysis of TSB Level and Globus Pallidus-Related Metabolite Indexes of Proton Magnetic Resonance Spectroscopy in the Newborn with Neonatal Jaundice

“…e relative characteristic MRI manifestation of ABE is a symmetrical short T1 signal in the globus pallidus, but it also occurs in premature infants and neonates with hypoxic-ischemic encephalopathy, which results in a relatively high incidence of false positives results in the diagnosis of ABE using conventional MRI [8,9]. Proton magnetic resonance spectroscopy ( 1 H-MRS) can quantitatively analyze the metabolism and biochemical changes of living tissues noninvasively, re ecting pathophysiological changes in brain lesions at the neurophysiological and molecular levels, which provides rich biochemical and metabolic information for clinical purposes [10][11][12].…”

Ions Transport in Electrochemical Energy Storage Devices at Low Temperatures

“…[121] Due to the wide variety of organic solvents, their mixtures with ionic liquids can flexibly develop tailored properties for specific functions. [120] In addition to a single organic solvent, we also can add binary organic solvent systems with low freezing points into ionic liquids. [30,129] From the point of view of without desolvation, organic solvents that only can break ion pairs of ionic liquids but without forming solvated ions should be selected as far as possible.…”