A5010785349- Ionic liquids properties and applications
- Thermodynamic properties of mixtures
- Material Dynamics and Properties
- Phase Equilibria and Thermodynamics
- Liquid Crystal Research Advancements
- Surfactants and Colloidal Systems
- Analytical Chemistry and Sensors
- Acoustic Wave Resonator Technologies
- Advanced Battery Materials and Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Electrochemical Analysis and Applications
- Spectroscopy and Chemometric Analyses
- Cold Atom Physics and Bose-Einstein Condensates
- Chemical and Physical Properties in Aqueous Solutions
- Catalysis and Hydrodesulfurization Studies
- Organic and Molecular Conductors Research
- Optical and Acousto-Optic Technologies
- Porphyrin and Phthalocyanine Chemistry
- Advanced NMR Techniques and Applications
- Inorganic and Organometallic Chemistry
- Olfactory and Sensory Function Studies
- Electrostatics and Colloid Interactions
- Gas Sensing Nanomaterials and Sensors
- Magnetism in coordination complexes
- Plant Parasitism and Resistance
National Institute of Standards and Technology
2023-2024
University of Colorado Boulder
2024
Material Measurement Laboratory
2023
University of Silesia in Katowice
2015-2022
Silesian Center for Heart Disease
2020-2022
Institute of Physics
1994-2021
Wrocław University of Science and Technology
2016
Adam Mickiewicz University in Poznań
1994
Ionic liquids are viewed as green media for many engineering applications and exhibit exceptional properties, including negligible vapor pressure, null flammability, wide liquid range, high thermal chemical stabilities. We present new thermophysical properties of 1-alkyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imides ([CnC1pyr][NTf2] with n = 3, 4) future application them heat-transfer media. The speed sound was measured at pressures up to 100 MPa temperatures from 293 K 318 K....
The isobaric and isochoric heat capacities of six disubstituted imidazolium-based ionic liquids with different anions two trisubstituted bis(trifluoromethylsulfonyl)imides were determined at atmospheric pressure in the temperature range from 293.15 to 323.15 K. using differential scanning calorimetry. indirectly by means acoustic method speed sound density measurements. Also, other connected quantities such as isentropic isothermal compressibilities well internal pressures determined....
The skin is the part of body that most exposed to toxic substances; therefore, impact chemicals on should be thoroughly studied prior their implementation in any industrial-scale application. Herein, we examined and analyzed influence structure both cation anion 31 different ionic liquids (ILs) cytotoxicity against normal human dermal fibroblasts context present future potential applications. We found imidazolium-based ILs combined with dialkyl phosphate anions or ethyl sulfate are least...
A series of five alcohols (3-methyl-2-butanol, 1-cyclopropylethanol, 1-cyclopentylethanol, 1-cyclohexylethanol, and 1-phenylethanol) was used to study the impact size steric hindrance its aromaticity on self-assembling phenomena in liquid phase. In this Letter, we have explicitly shown that phenyl ring exerts a much stronger effect self-organization molecules via O–H···O scheme than any other type hindrance, leading significant decline concentration H-bonded clusters. Given combination...
The environment around a host–guest complex is defined by intermolecular interactions between the complex, solvent molecules, and counterions. These govern both solubility of these complexes rates reactions occurring within host molecules can be critical to catalytic separation applications systems. However, are challenging detect using standard analytical chemistry techniques. Here, we quantify hydration ion pairing FeII4L4 coordination cage with set guest having widely varying...
One of the possible research directions for developing modern energy sector is searching innovative working fluids with exceptional properties, which leads to reducing consumption and costs operation system. As a continuation our investigations ionic liquids (ILs) their use as heat transfer (HTFs), we present new thermophysical properties 1-ethyl-2,3-dimethyl-1H-imidazol-3-ium bis[(trifluoromethyl)sulfonyl]azanide ([C2MMIm][TFSI]) 1-butyl-2,3-dimethyl-1H-imidazol-3-ium ([C4MMIm][TFSI])....
This Letter addresses a fundamental issue of condensed-matter physics, which is the validity density-scaling concept. For this purpose, ambient and high-pressure conductivity measurements two selected ionic liquids (ILs), with different contribution H-bonding interactions, were performed in dynamic range 13 orders magnitude corresponding to density changes as large 20%. All experimental data obtained within one compound are shown superimpose each other when plotted function ρ^{γ}/T. These...
Segmental dynamics is considered as a major factor governing ionic conductivity of polymerized liquids (PILs), envisioned potential electrolytes in fuel cells and batteries. Our dielectric studies performed $T\ensuremath{-}P$ thermodynamic space on ionene, composed the positively charged polymer backbone freely moving anions, indicate that other relaxation modes, completely ignored so far, can affect charge transport PILs well. We found fast mobility manifested by secondary...
In glass-forming liquids there is a secondary β-relaxation that bears strong connection to structural α-relaxation and of fundamental importance. It natural inquire whether ionic conductivity relaxation in conductors possesses the same property. This question has not been answered before because had found or resolved all kinds conductors. Herein, we investigate ion dynamics supercooled glassy states four 1-butyl-1-methylpyrrolidinium based differing significantly size strength interactions...
We examine the density scaling properties of two ionic materials, a classic aprotic low molecular weight liquid, 1-butyl-3-methylimidazolium bis(perfluoroethylsulfonyl)imide ([BMIm][BETI]), and polymeric poly(3-methyl-1,2,3-triazolium bis(trifluoromethylsulfonyl)imide) (TPIL). Density is known to apply rigorously simple liquids lacking specific intermolecular associations such as hydrogen bonds. Previous work has found that conform over limited ranges temperature pressure. In this work, we...
Ultrasound absorption spectra within the frequency range 10-300 MHz were determined for 1-propyl- and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imides at ambient pressure temperatures in ranges 293.15-313.15 293.15-323.15 K, respectively. For both compounds, a single Debye model (relaxation times between 0.451 0.778 ns) thoroughly describes observed ultrasound investigated ranges. The resemble those imidazolium-based ionic liquids with same anion. relaxation is dependent on...
In the current work, we present a broad analysis of cytotoxicity toward normal (kidney and lung) cancer (lung, liver, cervix) cells ionic liquids (ILs) with imidazolium cations cyano-based or bis(trifluoromethylsulfonyl)imide anions. Additionally, verify if ILs might be candidates for new potential virucidal agents. We observed highest biological activity 1-methyl-3-octylimidazolium bis(trifluoromethylsulfonyl)imide, whereas least toxic was 1-ethyl-3-methylimidazolium thiocyanate. found that...
In this communication, the Adam–Gibbs model connecting molecular dynamics with configurational entropy is tested for first time ionic liquids. For purpose, we investigate simultaneously shear viscosity η and Sc of an aprotic liquid: 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIm TFSI). Comparing data obtained by combination Vogel–Fulcher–Tammann equations to points determined directly from calorimetric experiment, good agreement found in entire supercooled liquid region....