• In the recent past, room-temperature ionic liquids (RTILs) are being explored for possible applications in nuclear fuel cycle. (hindawi.com)
  • This paper deals with the current status of the electrochemical research aimed at the recovery of actinides and fission products using room-temperature ionic liquid as medium. (hindawi.com)
  • For instance, the melting temperature of NaCl is 1074 K and that of 1-butyl-3-methylimidazolium chloride (bmimCl) is 343 K. Such organic salts are known as room-temperature ionic liquids (RTILs). (hindawi.com)
  • Some of the cations and anions used to form room-temperature ionic liquids. (hindawi.com)
  • In the recent past, room-temperature ionic liquids are receiving increased attention for possible electrochemical applications in the area of nuclear fuel reprocessing and waste management. (hindawi.com)
  • An ionic liquid is a salt in which the ions are poorly coordinated, which results in these solvents being liquid below 100 C, or even at room temperature (room temperature ionic liquids, RTIL's). (organic-chemistry.org)
  • Stereoselective halogenations of alkenes and alkynes can be conducted in room-temperature ionic liquids, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium bromide, and 1-butyl-3-methylimidazolium chloride as 'green' recyclable alternatives to chlorinated solvents. (organic-chemistry.org)
  • One active interest is the use of room-temperature ionic liquids (ILs) as environmentally-benign replacements for traditional organic solvents, with applications in aromatic/aliphatic separations and in CO2 capture. (utexas.edu)
  • This work presents a foremost systematic study on the solubility of phenolic compounds (tannic acid, quercetin and gallic acid) in ionic liquids. (rsc.org)
  • The solubility of tannic acid in ionic liquids follows the E N T polarity scale of the studied ionic liquids. (rsc.org)
  • The obtained results accompanied by the solubility of carbohydrates in ionic liquids can serve for a design of the future extraction of value added compounds from raw biomass. (rsc.org)
  • In the case of the perhalogenated compounds (CFC-113, CFC-114, and their isomers), the solubility behavior between isomers in the ionic liquid is practically identical with large immiscibility gaps. (acs.org)
  • The isomer effect on the solubility in the ionic liquid becomes significant for the dihydrogen-substituted halocarbons (HFC-134 and HFC-134a), and these isomers can be separated using [emim][Tf 2 N] as an entrainer in an extractive distillation. (acs.org)
  • For such applications, it is desirable to use an ionic liquid that has good solubility of actinides, excellent thermal and radiation stability, and wide electrochemical window with extended cathodic stability. (hindawi.com)
  • Ionic liquids show high solubility for both polar and apolar compounds. (tudelft.nl)
  • Formation of Aqueous Biphasic Systems with an Ionic Liquid Induced by Metallic Salts: Nanoscopic Views from Molecular Dynamics Simulations. (acs.org)
  • In this work, novel phase diagrams for aqueous solutions of imidazolium-based ILs combined with acetate-based salts, namely KCH3CO2 or NaCH3CO2, are reported and discussed. (ua.pt)
  • The ability of the acetate-based salts to induce the phase separation not only depends on the ions hydration energy, but also on the concentration of free ions in solution. (ua.pt)
  • It is here shown that low-viscous IL-based ABS, with a high difference in the densities of the coexisting phases, can be formed with organic and biodegradable salts thus offering enhanced features over conventional polymer-based systems. (ua.pt)
  • At the beginning of 1990, our group had started developing projects on the preparation and applications of ionic liquids (at that time called molten salts) as media for organometallic catalysis (mainly as alternative media to aqueous-phase organometallic catalysis). (sciencewatch.com)
  • Ionic liquids are molten salts, which are liquid below 373 K. They consist of organic cations with organic or inorganic anions. (tudelft.nl)
  • Chemistry major B.G. Loper (E&H '18) is studying the effects of atmospheric carbon dioxide on the corrosion behavior of porous silica glasses in unbuffered solutions. (ehc.edu)
  • The dissolution of actinide and lanthanide oxides in ionic liquid media and the electrochemical behavior of the resultant solutions are discussed in this paper. (hindawi.com)
  • However, the advent of these liquids has opened up unimagined opportunities for basic science since they allow one for the first time to investigate the interactions and behavior of molecular, biological, and macromolecular species in solution using physical and chemical methods which require special conditions such as high-vacuum, and which have been traditionally limited to solid-state chemistry. (sciencewatch.com)
  • This interesting behavior, which is known as the miscibility switch phenomenon, is generally applicable for ternary systems containing ionic liquids, CO2 and organics. (tudelft.nl)
  • A new process set-up based on this phase behavior has been proposed, in which the reaction is carried out in a homogenous phase at high rate (no mass transfer limitations) by selection of a suitable pressure, temperature and CO2 concentration. (tudelft.nl)
  • of tert-butyl hydroperoxide as oxidant at 25 °C. In order to design the subsequent separation step using CO2 extraction, it is critical to have the knowledge on the phase behavior of the systems involved. (tudelft.nl)
  • Therefore, the high-pressure phase behavior of ternary systems containing epoxidation reaction compounds, ionic liquids and scCO2 were measured. (tudelft.nl)
  • Phase behavior experiments were carried out using a synthetic method in the Cailletet apparatus at five different concentrations of CO2, at temperatures and pressures up to 368 K and 12.1 MPa, respectively. (tudelft.nl)
  • Effect of Salt Type and Alkyl Chain Length on the Binodal Curve of an Aqueous Two-Phase System Composed of Imidazolium Ionic Liquids. (acs.org)
  • Nathan's project was to synthesize long chain internal alkyne imidazolium-based ionic liquids to determine how internal alkyne units of unsaturation will affect the properties of the ionic liquids. (ehc.edu)
  • As of now, long chain internal alkyne imidazolium-based ionic liquids have yet to synthesized from this method. (ehc.edu)
  • In this paper we developed the concept that "pure" imidazolium ionic liquids should be described as polymeric hydrogen-bonded supramolecules (highly ordered hydrogen bonded materials). (sciencewatch.com)
  • The sol-gel method has been applied for supporting Pd nanoparticles (ca.4.8nm) previously synthesized in functionalized ionic liquids 1-n-butyl-3-(3-trimethoxysilylpropyl) imidazolium hexafluorophosphate [PMI.Si. (ommegaonline.org)
  • The Department of Chemistry offers a range of general doctoral courses. (lu.se)
  • The solid-liquid equilibrium measurements in binary systems were carried out by using a dynamic method from 273 K to 413 K. Among all tested ionic liquids, 1-butyl-3-methylimidazolium tetrafluoroborate was found to be the best solvent for tannic acid. (rsc.org)
  • Furthermore, tetrafluoroborate and hexafluorophosphate ionic liquids confirmed their ability to form hydrofluoric acid at elevated temperatures and in the presence of water traces. (rsc.org)
  • Dołżonek J. , Cho C.-W., Stepnowski P., Markiewicz M. , Thöming J. , and Stolte S. (2017) Membrane partitioning of ionic liquid cations, anions and ion pairs - estimating the bio concentration potential of organic ions. (uni-bremen.de)
  • Ionic Liquid Selection for the Separation of Refrigerant Mixtures Using Extractive Distillation. (acs.org)
  • Since the continuous emergence of novel fentanyl analogues has created a need for improved methods able to distinguish between fentanyl analogues and their isomers, in this study, the utility of commercially available ionic liquid columns is demonstrated for GC-FID and GC-MS separation and unambiguous identification of fentanyl, 22 fentanyl analogues, and U-47700. (ojp.gov)
  • In this work we tackle the problematic separation of reaction products from ionic liquid media. (rsc.org)
  • Solvent-resistant nanofiltration proves to be an attractive technique for the separation of non-volatile polar products from ionic liquids. (rsc.org)
  • After completion of the reaction, a phase separation is induced by changing the conditions. (tudelft.nl)
  • Optimal Aqueous Biphasic Systems Design for the Recovery of Ionic Liquids. (acs.org)
  • Ionic-liquid-based aqueous biphasic systems (IL-based ABS) have been largely investigated as promising extraction and purification routes. (ua.pt)
  • His research integrates issues of Ion, Aqueous solution, Adsorption and Alkyl in his study of Inorganic chemistry. (research.com)
  • The concepts of his Inorganic chemistry study are interwoven with issues in Solid-state nuclear magnetic resonance and Aqueous solution. (research.com)
  • The catalyst and ionic liquid may be recycled several times. (organic-chemistry.org)
  • The catalytic epoxidation reaction of cinnamyl alcohol in the presence of ionic liquids was optimized with respect to various parameters: (i) type and amount of oxidizing agent, (ii) type and amount of catalyst, (iii) type of ionic liquids (ranging from hydrophobic to hydrophilic), and (iv) temperature. (tudelft.nl)
  • Optimum conditions were obtained using the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]) with 3 mol% vanadyl acetylacetonate as a catalyst and 1,5 equiv. (tudelft.nl)
  • This involves work at scales ranging from the molecular to the process and potentially to the ecosystem levels, and using techniques from computational chemistry, machine learning, molecular thermodynamics, transport phenomena, process engineering, and ecological dynamics. (utexas.edu)
  • Ionic liquids can also make for safer microwave synthesis methods, because sudden pressure surges are not possible. (organic-chemistry.org)
  • Conditions needed for the reactions and work-up have been partially optimized for future research students to finish synthesizing the desired ionic liquids. (ehc.edu)
  • In view of the high compatibility between ozone and ionic liquids, two ozone -mediated model reactions were chosen: firstly the oxidation of acetals to esters in the presence of ozone and secondly the ozonation of methyl oleate to monomethyl azelate and pelargonic acid . (rsc.org)
  • Dr Warren Cross's research involves the modelling of chemical reactions, especially organic chemistry transformations involving transition metal catalysis. (ntu.ac.uk)
  • The dipole characteristics of ionic liquids translate into rapid excitation by microwaves, and consequently faster reactions. (organic-chemistry.org)
  • Pd Nanoparticles in Functionalized Ionic Liquid supported in SiO2: Evaluation in Hydrogenation Reactions. (ommegaonline.org)
  • Crystallography, Molecule, Ionic liquid, Inorganic chemistry and Nuclear magnetic resonance spectroscopy are his primary areas of study. (research.com)
  • His study in Ionic liquid is interdisciplinary in nature, drawing from both Tribology, Inorganic chemistry, Phase, Ion and Phosphonium. (research.com)
  • The research of the Computational and Theoretical Chemistry group focuses on the development of novel theoretical approaches which are applied across a wide range of areas of chemistry, including MOFs, lipid membrane bilayers and characterisation of synthetic pathways. (ntu.ac.uk)
  • Gas chromatography analysis was performed with a Hewlett-Packard-5890 gas chromatograph with an FID detector and a 30-m capillary column with a dimethylpolysiloxane stationary phase. (ommegaonline.org)
  • The second generation polyimide-based DuraMem™ membranes showed the highest rejection, up to 96%, for the evaluated ionic liquids. (rsc.org)
  • Dr Robinson's research is in the development and application of novel approaches to understanding electronically excited states of biologically relevant chromophores and fluorophores and how they can be used as probes of lipid membrane composition and phase detection in membranes. (ntu.ac.uk)
  • When we started to publish the supramolecular approach to describe the structural aspects of these liquids we encountered serious resistance from part of the ionic liquid community, but eventually this resistance was reduced, in particular with the appearance of more and more experimental and theoretical evidence corroborating the general idea of the nano-structural organization of ionic liquids. (sciencewatch.com)
  • His work deals with themes such as Supramolecular chemistry, Fibril, Scanning transmission electron microscopy, Intermolecular force and Nuclear magnetic resonance spectroscopy, which intersect with Solid-state nuclear magnetic resonance. (research.com)
  • His work investigates the relationship between Supramolecular chemistry and topics such as Thermal decomposition that intersect with problems in Hydrogen bond and Self-assembly. (research.com)
  • His primary areas of investigation include Ionic liquid, Thermal analysis, Crystallography, Supramolecular chemistry and Thermal diffusivity. (research.com)
  • His main research concerns Ionic liquid, Crystallography, Nuclear magnetic resonance spectroscopy, Molecule and Thermal analysis. (research.com)
  • As a part of the same scientific family, he mostly works in the field of Ionic liquid, focusing on Nuclear magnetic resonance spectroscopy and, on occasion, Ionic bonding, Polymer and Ion. (research.com)
  • In this context, the determination of their phase diagrams and the physical properties of the coexisting phases are of high relevance when envisaging their large-scale applications. (ua.pt)
  • Dr Addicoat's research is in the development and application of computational approaches to determine the structure and properties of combinatorially complex materials, in particular molecular framework materials (such as Metal Organic Frameworks and Covalent Organic Frameworks) and ionic liquids. (ntu.ac.uk)
  • These compounds possess very interesting physico-chemical properties and are highly popular not only in chemistry, but also in physics, materials sciences, and biomedical sciences, and are used and investigated in a plethora of subjects in both industry and academia. (sciencewatch.com)
  • Ionic liquids possess physico-chemical properties that may allow the design of safer and environmentally acceptable processes (generating much less waste and using less water and less energy). (sciencewatch.com)
  • Even in its more basic aspects-in which we are deeply involved in understanding the properties of these strange liquid materials-the knowledge and especially how to use them is always power. (sciencewatch.com)
  • Typically, ionic liquids possess an extremely low vapor pressure, a high thermal stability, and a wide liquid range. (tudelft.nl)
  • 24 compounds were separated 36% faster with an elution window increase of 33% on the ionic liquid phase compared to the 5% diphenyl/95% dimethylpolysiloxane phase. (ojp.gov)
  • The selectivity of 11 isomeric analogue sets (out of 12) increased by 2 to 25% over the 5% diphenyl/95% dimethylpolysiloxane phase showing an ionic liquid column is more favorable for separating fentanyl analogues. (ojp.gov)
  • The Journal of Physical Chemistry B 2018 , 122 (44) , 10143-10157. (acs.org)
  • The Journal of Physical Chemistry. (wikipedia.org)
  • Experimental measurements of density and viscosity of the coexisting phases, for the different systems and at several compositions and temperatures, are additionally presented. (ua.pt)
  • Alcohols were efficiently converted to alkyl halides using 1- n -butyl-3-methylylimidazolium halide ioniq liquids in the presence of Br nsted acids at room temperature. (organic-chemistry.org)
  • A sulfoxide reduction/C-S bond metathesis cascade between sulfoxides and alkyl bromides in an ionic liquid provides high-value sulfides without the use of any catalysts or bases. (organic-chemistry.org)
  • The chemistry faculty have been recognized with four statewide awards for teaching excellence as well as several college wide awards. (ehc.edu)
  • The chemistry faculty adhere to an open door policy so that students with questions or in need of help may receive it directly from the faculty. (ehc.edu)
  • Other departments at LTH and the Faculty of Science have doctoral courses that might suitable for PhD students in Chemistry. (lu.se)
  • Industrial & Engineering Chemistry Research 2021 , 60 (43) , 15730-15740. (acs.org)
  • Moreover, it is shown before that CO2 is able to force two immiscible liquid phases to form one homogeneous phase as CO2 pressure increases. (tudelft.nl)
  • Finally, using data obtained during this work, the conditions for carrying out the epoxidation reaction in a homogeneous phase and extracting the product with scCO2 in the two-phase region are determined. (tudelft.nl)
  • Class sizes in the Chemistry Department are typically 5-10 for 300/400 (junior/senior) level courses. (ehc.edu)
  • The objective was to retain the ionic liquid phase by means of a solvent-resistant nanofiltration membrane , while the organic reaction products permeate through the polymeric membrane . (rsc.org)
  • In order to scale up the reaction in an ionic liquid/scCO2 miscibility switch system, a study was started to select the optimum ionic liquid in this case. (tudelft.nl)
  • His Thermal diffusivity study combines topics from a wide range of disciplines, such as Phase transition, Ethylammonium nitrate and Analytical chemistry. (research.com)
  • The Seetohul group is involved in developing methods for the study of novel psychoactive substances, and the application of liquid phase broadband cavity enhanced absorption spectroscopy to analytical, biological and bio-analytical samples. (ntu.ac.uk)
  • Industrial & Engineering Chemistry Research 2023 , Article ASAP. (acs.org)
  • Industrial & Engineering Chemistry Research 2023 , 62 (36) , 14522-14536. (acs.org)
  • In particular, the recent investigation of novel anhydrous liquid materials, such as ionic liquids (ILs), CO 2 -triggered switchable absorbents [i.e. (frontiersin.org)
  • Differential scanning calorimetry was used to determine the melting point, the enthalpy of melting and the temperature and enthalpies of the solid-solid phase transitions, for the first time for the investigated valuable phenolic compounds. (rsc.org)
  • The work of the group sits on the inter-disciplinary boundaries of chemistry , applied physics , applied mathematics , bio-analytical methods , and social science . (ntu.ac.uk)
  • To prepare students for graduate study related to chemistry or the health/medical professions and also for employment in various areas of chemistry. (ehc.edu)