Journal ArticleDOI
Thermophysical Properties of Imidazolium-Based Ionic Liquids
Christopher P. Fredlake,Jacob M. Crosthwaite,Daniel G. Hert,and Sudhir N. V. K. Aki,Joan F. Brennecke +4 more
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TLDR
In this paper, the authors present density as a function of temperature, melting temperatures, glass transition temperatures, decomposition temperatures, and heat capacities for 13 ionic liquids, including 1-butyl-3-methylimidazolium trifluoromethanesulfonate.Abstract:
Ionic liquids (ILs) are salts that are liquid at low temperatures, usually including the region around room temperature. They are under intense investigation, especially as replacement solvents for reactions and separations, since they exhibit negligible vapor pressure and would not, therefore, contribute to air pollution. Clearly, basic thermophysical properties are vital for design and evaluation for these applications. We present density as a function of temperature, melting temperatures, glass-transition temperatures, decomposition temperatures, and heat capacities as a function of temperature for a series of 13 of the popular imidazolium-based ILs. The ionic liquids investigated here are 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium bromide, 1-butyl-3-methylimidazolium dicyanamide, 1-butyl-3-methylimidazolium trifluoromethanesulfonate, 1-butyl-3-methylimidazolium tris(trifluoromethylsul...read more
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Microwave-assisted synthesis of cobalt oxalate nanorods and their thermal conversion to Co3O4 rods
Wei-Wei Wang,Ying-Jie Zhu +1 more
TL;DR: In this article, a simple microwave-assisted solution approach using an ionic liquid 1-n-butyl-3-methyl imidazolium tetrafluoroborate was used to synthesize cobalt oxalate nanorods.
Journal ArticleDOI
Structural Evidence for the Ordered Crystallites of Ionic Liquid in Confined Carbon Nanotubes
TL;DR: In this article, the authors performed molecular dynamics simulations for [bmim][PF6] ionic liquid and provided direct structural evidence that the ionic crystallizes in a carbon nanotube.
Journal ArticleDOI
Liquid–Liquid Equilibria of 1-Butanol/Water/IL Systems
TL;DR: In this article, the perturbed-chain statistical associating fluid theory (PC-SAFT) was used for modeling the liquid-liquid equilibria of ternary 1-butanol/water/ionic liquid mixtures.
Journal ArticleDOI
Formation of a Biomimetic, Liquid-Crystalline Hydrogel by Self-Assembly and Polymerization of an Ionic Liquid
TL;DR: In this paper, a methylimidazolium-based ionic liquid (IL) that incorporates an acryloyl moiety at the terminus of a C8 alkyl chain is described.
Journal ArticleDOI
Novel Ether-Functionalized Pyridinium Chloride Ionic Liquids for Efficient SO2 Capture
TL;DR: In this article, a series of novel ether-functionalized pyridinium chloride Ionic liquids (ILs) were designed and synthesized to improve the absorption capacities of ILs for SO2, and the physicochemical properties of these ILs and their SO2 absorption performance under different conditions were investigated.
References
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Journal ArticleDOI
Ionic Liquids-New "Solutions" for Transition Metal Catalysis.
Peter Wasserscheid,Wilhelm Keim +1 more
TL;DR: There are indications that switching from a normal organic solvent to an ionic liquid can lead to novel and unusual chemical reactivity, which opens up a wide field for future investigations into this new class of solvents in catalytic applications.
Journal ArticleDOI
Hydrophobic, Highly Conductive Ambient-Temperature Molten Salts
Pierre Bonhote,Ana-Paula Dias,Nicholas Papageorgiou,Kuppuswamy Kalyanasundaram,Michael Grätzel +4 more
TL;DR: New, hydrophobic ionic liquids with low melting points (<−30 °C to ambient temperature) have been synthesized and investigated, based on 1,3-dialkyl imidazolium cations and hydrophilic anions and thus water-soluble.
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Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation
Jonathan G. Huddleston,Ann E. Visser,W. Matthew Reichert,Heather D. Willauer,Grant A. Broker,Robin D. Rogers +5 more
TL;DR: A series of hydrophilic and hydrophobic 1-alkyl-3-methylimidazolium room temperature ionic liquids (RTILs) have been prepared and characterized to determine how water content, density, viscosity, surface tension, melting point, and thermal stability are affected by changes in alkyl chain length and anion.
Journal ArticleDOI
Molecular states of water in room temperature ionic liquids
TL;DR: In this paper, the authors used ATR and transmission IR spectroscopy to investigate the state of water in room temperature ionic liquids (RTILs) based on the 1-alkyl-3-methylimidazolium cation with the anions.