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Showing 1 to 20 of 34 for “"Room Temperature Ionic Liquids"”.
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Characterising room temperature ionic liquids with acoustic wave devices
Data for the physical properties of Room Temperature Ionic Liquids (RTILs) as a function of chemical composition is limited due to the expense and difficulty of producing large volumes of pure samples for characterization. RTILs comprise solely of ions and are liquid at room temperature. These are …
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Applications of room temperature ionic liquids in interfacial polymerization
Room temperature ionic liquids (ILs), with their unique physical and chemical properties, have been of great interest in various areas of chemical science and engineering during the last decade. In this dissertation, polyurea and polyamide films with surface nanostructures were synthesized by …
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Nano-Confined Room-Temperature Ionic Liquids for Electrochemical Applications
Room-temperature ionic liquids (RTILs) and their derivatives are promising electrolytes for electrochemical devices including supercapacitors. Understanding the behavior of RTILs in these devices is critical for improving their performance. The energy density of supercapacitors can be improved …
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Investigations of the electrochemical behaviour of room temperature ionic liquids
The existence of Room Temperature Ionic Liquids (RTILs) has been known for a long time, but only recently have they been pulled to the forefront of chemical research. This increase in attention can be attributed to a keen interest in their intrinsic properties for a wide variety of potential …
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Prediction of isobaric heat capacities of room temperature ionic liquids
Ionic liquids (ILs) have many potential applications that require knowledge of a variety of physical and thermodynamic properties. While these properties can often be determined experimentally, this is impossible for novel, yet to be synthesised ILs; thus, property prediction from first principles …
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Processes Involving Acid Gas Solubility In Room Temperature Ionic Liquids (RTILs)
… mixed dry gas feed of CO2/CH4 by four Stabilized Ionic Liquid Membranes (SILMs); 1-Ethyl-3-methlyimidazolium dicyanamide, [emim][DCA], 1-ethyl-3-methylimidazolium thiocyanate, [emim][SCN], 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [emim][Tf2N] and 1-Butyl-3-methylimidazolium …
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Electrochemistry of room temperature ionic Liquids with applications to electrospray propulsion
Room Temperature Ionic Liquids (RTILs) exhibit a number of physical properties that have opened new doors for technological advancements in space-based micropropulsion, focused ion beam, energy storage, and other research and industrial applications. As a family of concentrated electrolytes, RTIL …
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Low temperature electrocatalytic reduction of carbon dioxide utilizing room temperature ionic liquids
… catalysts to achieve the conversion. First an ionic liquid or ionic salt is used to catalyze the formation of a “(CO2)-” intermediate. Then a transition metal is used to catalyze the conversion of the “(CO2)-” intermediate into useful products. CO formation is first observed at -450mV with …
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Low temperature electrocatalytic reduction of carbon dioxide utilizing room temperature ionic liquids
… catalysts to achieve the conversion. First an ionic liquid or ionic salt is used to catalyze the formation of a (CO2) intermediate. Then a transition metal is used to catalyze the conversion of the (CO2) intermediate into useful products. CO formation is first observed at -250mV with respect …
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Development of a force field with condensed phase consistent charges for N,N' - dialkylimidazolium room temperature ionic liquids
Most force field models for Room temperature ionic liquids cannot properly elucidate statics and dynamics. It is in this context that we set to assess the most efficient way to model RTILs while maintaining the integrity of the liquids statics and dynamics. The development approach begins with the …
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Lewis acid catalysis in organic synthesis
… conventional organic solvents and as well as in room temperature ionic liquids (TRIL). Acetylation reactions using acetic anhydride as the reagent proceed in excellent yields, in the presence of catalytic amounts (0.01 - 0.5 mol %) of Gd(OTf)₃, at ambient temperature. Acetylations of variety of …
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Use Of 17o-Nmr Spectroscopy To Study The Coordination Chemistry Of Trivalent Lanthanide Ions In Solution
… study of water-exchange rates of Ln3+ ions in room temperature ionic liquids. Room temperature ionic liquids were studied because they are important solvents for Ln3+ ions. Luminescence-decay measurements were used to measure the coordination number of Eu3+ and Tb3+ ions in …
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Joint Density-Functional Theory For Energetics And Spectroscopy In Complex Aqueous And Nonaqueous Solvents
… enviroments, including organic solvents and room temperature ionic liquids, as well as new methods for calculating electron excitation spectra in such systems. These theories are then applied to a range of physical problems, from dendrite formation in lithium-metal batteries to the optical …
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A computational study of acidic Ionic Liquids for cellobiose hydrolysis in ionic liquids
… in the use of harsh pretreatments at high temperatures and pressures to extract cellulose from lignocellulosic material and strong acids catalysts (pKa < −3.2). Room temperature ionic liquids (RTILs) provide potentially environmentally friendly alternative. It has been shown that ILs can …
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Interaction studies of imidazolium based ionic liquids with organic acids and acetophenone : thermodynamic, spectroscopic, and theoretical approaches
Ionic liquids (ILs) are salts that are primarily composed of cations and anions. They exist as liquids below 100°C or at room temperature, which is why they are sometimes referred to as room-temperature ionic liquids (RTILs). These salts are receiving a great deal of attention in a wide range of …
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Large contraction conducting polymer molecular actuators
… of the polymer activation environment via room temperature ionic liquids enables PPy actuators to generate large contractions (16.3 % recoverable strain at 2.5 MPa, 21 % max) at slow speeds (0.4 %/s). In addition, cycle life can reach 10⁵ cycles without significant polymer degradation. This …
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Novel inorganic membranes for gas separation
… mixed matrix, amorphous silica, and supported ionic liquid membranes. Supported ionic liquid CO₂/CH₄ selective membranes were synthesized in our laboratory by applying room temperature ionic liquids (RTILs) to porous inorganic α-alumina supports. The supported ionic liquid membranes (SILMs) …
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Bioaktyviųjų joninių skysčių aukštosios skyros BMR tyrimas /
Bioactive room temperature ionic liquids (b-RTIL) are getting more popular in the field of ionic liquids. The ionic liquids are composed of organic cation molecules and organic or inorganic molecule anions. IL have low melting temperature; low vapour pressure and their chemical structure can be …
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Ionic liquids as a dissolution system for preparing graphene/cellulose based materials
… severe problems for dissolution and processing. Room temperature ionic liquids, especially those which contain strong hydrogen bond acceptor anions, have been reported to be effective and promising cellulose solvents. Graphene continues to play an important role in many fields such as carbon …
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