X-ray scattering investigation of ion aggregation in imidazolium-based ionic liquids upon doping with lithium, sodium, potassium, rubidium and cesium salts

Transport properties of alkali/alkaline earth cations in ionic-liquid based electrolytes

“…As viscosity of molecular compounds arises from intermolecular/interionic cohesive forces, reinforcement of these effects by replacing a large BMIm + cation by smaller ones may be related to a balance between size and ionicity of the coordinated cation and solvation shell reorganization leading also to change of nanoscale structural reorganization inside the blends as it was also depicted in other systems. 27,28,46,61,62 Figures 2 e) and f) present the ionic conductivity at 25°C of the studied electrolytes versus cation size and concentration. It evidences that ionic conductivity is reduced upon addition of alkali/earth alkaline salt and this decrease varies quasi-linearly with the f ratio for the different ions, figure 2 f).…”

Effects of alkali ion dopants on the transport mechanisms and the thermal stabilities of imidazolium-based organic ionic plastic crystals

“…In liquid phases, Na + and Li + ions exhibit different solvation behaviors and transport properties due to their different sizes. [49][50][51][52][53][54][55][56][57][58][59][60] Monti et al compared the electrical conductivity of different ionic liquids and showed that the conductivity of Na + ions in Na x [EMIM] 1Àx [TFSI] ionic liquids was higher than that of Li + ions in Li x [EMIM] 1Àx [TFSI] ionic liquids. In ionic liquids, Na + ions diffuse by forming a [Na[TFSI] 3 ] 2À complex, whereas the [Li[TFSI] 2 ] À complex is the main transporter of Li + ions.…”