The use of fossil fuels as energy carriers and raw materials promotes the rapid development of society. However, the excessive exploitation of fossil fuels has given rise to an energy crisis and undesirable environmental ...
Materials Science
Mar 17, 2021
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6
Although opposite charges always attract, they do not always interact as closely as possible. In a new study, researchers used a combination of molecular simulations and experiments to demonstrate the effects of subtly changing ...
Analytical Chemistry
Feb 24, 2021
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41
By 2025, two-thirds of the world's population could experience a freshwater shortage. To tackle this issue, researchers from the University of Notre Dame have identified a new solvent—an ionic liquid—that improves on ...
Materials Science
Feb 11, 2021
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Electrospray of room temperature ionic liquids (RTILs), which are solvent-free electrolytes with easily tailored ions, is emerging as a powerful tool in diverse fields. In particular, electrosprays of RTILs operating in the ...
Analytical Chemistry
Jan 13, 2021
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7
A new generation of rocket propellants for deep space exploration such as ionic liquid propellants with long endurance and high stability, are attracting significant attention. However, ionic liquid propellants are strongly ...
The effect of ultrasound on the liquid phase has been visualized using dynamic electron microscopy. The use of the effect of standing mechanical waves arising in the liquid phase under the action of an external ultrasound ...
General Physics
Dec 11, 2020
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5
Nanoparticles are promising drug delivery tools, offering the ability to administer drugs directly to a specific part of the body and avoid the awful side effects so often seen with chemotherapeutics.
Bio & Medicine
Nov 25, 2020
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400
A team of scientists has succeeded in visualizing how carbon dioxide (CO2) behaves in an ionic liquid that selectively absorbs CO2. The finding is expected to help develop more efficient methods to capture CO2 in the atmosphere, ...
Materials Science
Nov 25, 2020
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212
Researchers at Berkeley Lab have transformed lignin, a waste product of the paper industry, into a precursor for a useful chemical with a wide range of potential applications.
Materials Science
Oct 01, 2020
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4
Green solvents for making biodiesel would reduce the environmental impact of such fuels still further. Writing in the World Review of Science, Technology and Sustainable Development, a team from India discussed the potential ...
Biochemistry
Sep 23, 2020
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9
Ionic liquids, originally known as liquid electrolytes, ionic melts, ionic fluids, fused salts, liquid salts, or ionic glasses, are liquids comprised predominantly of ions and ion-pairs at some given temperature. Ordinary table salt, or, sodium chloride, consists of sodium cations (Na+) and chloride anions (Cl−) that when heated to several hundred degrees, forms a liquid containing predominantly ions. While many combinations of bulkier and often more asymmetric organic ions also form well defined crystals, with well defined melting points, many instead form glasses prior to thermodynamically stable crystal lattice formation where the cyrstallization kinetics are extremely slow. For example, the salt 1-ethyl-3-methylimidazolium dicyanamide, [C2mim][N(CN)2], melts at Tm = -21 °C, pyridinium chloride, [PyH]Cl, exhibits a melting point of Tm = 144.5 °C but 1-butyl-3,5-dimethylpyridinium bromide, [N-butyl-3,5-dimethyl-Py]Br, exhibits glass formation at Tg = -24 °C.
The term, ionic liquid, includes all classical molten salts, which are comprised of more thermally stable ions, such as sodium with chloride or potassium with nitrate, and has been attested as early as 1943. Recently, it has come to be used for salts whose melting point is below an arbitrary set point of 100 °C. There also exist mixtures of substances which have low melting points, called deep eutectic solvents, or DES, that have many similarities with ionic liquids.
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