Ionic and Molecular Liquids: Working Together for Robust Engineering

Abstract

Because of their outstanding versatility, room-temperature ionic liquids (RTILs) are utilized in an ever increasing number of novel and fascinating applications, making them the Holy Grail of modern materials science. In this Perspective, we address the fundamental research and prospective applications of RTILs in combination with molecular liquids, concentrating on three significant areas: (1) the use of molecular liquids to decrease the viscosity of RTILs; (2) the role of RTIL micelle formation in water and organic solvents; and (3) the ability of RTILs to adsorb pollutant gases. Current achievements are examined, and future directions for the potential uses of RTILs are outlined.

Evidence of nanostructuration from the heat capacities of the 1,3-dialkylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid series

“…The heat capacities at T = 298.15 K of the extended se- 4,6,8,10,12,14,16,18,20) ionic liquids were measured by a high-precision heat capacity drop calorimeter, which is described in detail in the literature. [22][23][24] The calorimeter, was originally developed and used at the Thermochemistry Laboratory, Lund, Sweden, 22,23 being afterwards transferred to Porto, Portugal, where it was reassembled, modernized, and tested.…”

“…[1][2][3] The possible use of ionic liquids (ILs) as heat transfer for heat exchange in chemical plants and solar thermal power generation was discussed, and it was found that the imidazolium based ionic liquids present higher heat capacities per unit of volume that two high performance commercial thermal fluids. [4][5][6] The knowledge of the heat capacity is required for the evaluation of the applicability of the ionic liquids as heat transfer fluids. [4][5][6] During the past decade, the research in ionic liquids has gained popularity, mainly due to their particular properties.…”

“…[4][5][6] The knowledge of the heat capacity is required for the evaluation of the applicability of the ionic liquids as heat transfer fluids. [4][5][6] During the past decade, the research in ionic liquids has gained popularity, mainly due to their particular properties. Hence, intense research in these systems was performed both in fundamental and applied fields, contributing to the progress in the understanding of the ionic liquids at a molecular level, a) Authors to whom correspondence should be addressed.…”

“…24 This work complements and extends the previous study concerning the heat capacities of the [C N−1 C 1 im][NTf 2 ] ionic liquid series, aiming at evaluating the effect of the symmetry and nanostructuration on the heat capacities of an ionic liquid homologous series. 4,6,8,10,12,14,16,18,20), used in this work, were purchased from IOLITEC with a stated purity of better than 98%. All ionic liquids were dried under reduced pressure (<10 Pa) and stirred constantly at 323 K, in order to reduce the presence of water or other volatile contents.…”

Polarization versus Temperature in Pyridinium Ionic Liquids

“…Room-temperature ionic liquids (RTILs) [1][2][3][4][5][6][7][8][9][10][11] constitute an active research field.…”