Listar por tema "ionic liquids"
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Application of optically active chiral bis- (imidazolium) salts as potential receptors of chiral dicarboxylate salts of biological relevance
Royal Society of Chemistry (2015)A family of chiral bis(imidazolium) salts derived from natural amino acids has been synthesized by a simple synthetic approach and the corresponding bis(trifluoromethylsulfonyl)imide salts have been shown to be room ... -
Biocatalytic hydrolysis of di-urethane model compounds in ionic liquid reaction media
Elsevier (2024-01-11)The suitability of different enzymes to carry out the hydrolysis of two-different toluene-based urethane model compounds (i.e. bis(2-methoxyethyl) (4-methyl-1,3-phenylene)dicarbamate, and bis(2-methoxyethyl) (2-methyl-1, ... -
Catalyst design for highly efficient carbon dioxide hydrogenation to formic acid under buffering conditions
Elsevier (2020-03-19)We report on new ruthenium complexes as catalysts for the efficient transformation of CO2 into formic acid employing basic ionic liquids as buffering media. Remarkably, these complexes catalyze the hydrogenation of CO2 ... -
Chiral imidazolium prolinate salts as efficient synzymatic organocatalysts for the asymmetric aldol reaction
MDPI (2021-07-09)Chiral imidazolium l-prolinate salts, providing a complex network of supramolecular interaction in a chiral environment, have been studied as synzymatic catalytic systems. They are demonstrated to be green and efficient ... -
Chiral Room Temperature Ionic Liquids as Enantioselective Promoters for the Asymmetric Aldol Reaction
Wiley Online Library (2014)Chiral ionic liquids derived from natural amino acids are shown to be green and efficient media for direct asymmetric aldol reactions at room temperature catalyzed by (S)-proline. The corresponding aldol products were ... -
Chiral Triazolium Salts and Ionic Liquids: From the Molecular Design Vectors to Their Physical Properties through Specific Supramolecular Interactions
Wiley-VCH (2012-11-29)An exhaustive experimental study based on X-ray diffraction analysis, NMR, FTIR-ATR (attenuated total reflection), and Raman spectroscopy as well as theoretical calculations is reported in order to understand how the ... -
Direct Air Capture and Integrated Conversion of Carbon Dioxide into Cyclic Carbonates with Basic Organic Salts
American Chemical Society (2023-07-03)Direct air capture and integrated conversion is a very attractive strategy to reduce CO2 concentration in the atmosphere. However, the existing capturing processes are technologically challenging due to the costs of the ... -
Effect of buffer nature and concentration on the chromatographic performance of basic compounds in the absence and presence of 1-hexyl-3-methylimidazolium chloride
Elsevier (2019-07-02)In reversed-phase liquid chromatography, the performance for basic compounds is affected by the interaction of the protonated (cationic) species with the anionic free silanols on the alkyl-bonded stationary phases. Using ... -
Efficient carbon dioxide hydrogenation to formic acid with buffering ionic liquids
Springer Nature (2021-01-11)The efficient transformation of CO2 into chemicals and fuels is a key challenge for the decarbonisation of the synthetic production chain. Formic acid (FA) represents the first product of CO2 hydrogenation and can be a ... -
Environmental performance of 3D-Printing polymerisable ionic liquids
Elsevier (2018-12-28)This work presents a “cradle-to-gate” Life Cycle Assessment (LCA) of 3D-printing polymerisable ionic liquids (PILs) using digital light projection (DLP). It is based on primary data from environmental emissions, wastewater, ... -
Extent of the influence of phosphate buffer and ionic liquids on the reduction of the silanol effect in a C18 stationary phase
Elsevier (2017-06)The presence of anionic free silanols in the silica-based stationary phases gives rise to broad and asymmetrical peaks when cationic basic compounds are chromatographed using hydro-organic mobile phases. The addition to ... -
From Salts to Ionic Liquids by Systematic Structural Modifications: A Rational Approach Towards the Efficient Modular Synthesis of Enantiopure Imidazolium Salts
Wiley-VCH (2010)This paper reports a simple and robust modular synthetic strategy that leads to a large variety of configurationally and structurally diverse imidazole-based chiral ionic liquids (CILs) by lipase-catalyzed resolution. The ... -
Gel–Polymer Electrolytes Based on Poly(Ionic Liquid)/Ionic Liquid Networks
American Chemical Society (2021-01-08)The use of electrically charged, polymerized ionic liquids (polyILs) offers opportunities for the development of gel–polymer electrolytes (GPEs), but the rational design of such systems is in its infancy. In this work, we ... -
Green biocatalytic synthesis of biodiesel from microalgae in one-pot systems based on sponge-like ionic liquids
Elsevier (2019)Binary mixtures of ionic liquids (ILs) have been used for developing one-pot systems suitable for the direct extraction and biocatalytic transformation of algal oil to biodiesel without prior isolation. These mixtures were ... -
Highly selective biocatalytic synthesis of monoacylglycerides in sponge-like ionic liquids
The Royal Society of Chemistry (2016-08)The biocatalytic synthesis of monoacylglycerides (MAGs) was carried out by the direct esterification of fatty acids (i.e. capric, lauric, myristic, palmitic and oleic acids, respectively) with glycerol in different ionic ... -
Imidazolium Iodide-Doped PEDOT Nanofibers as Conductive Catalysts for Highly Efficient Solid-State Dye-Sensitized Solar Cells Employing Polymer Electrolyte
American Chemical Society (2017)The electrical conductivity and catalytic activity of nanofibrous poly(3,4-ethylenedioxythiophene)s (PEDOT NFs) was improved by redoping with dimethyl imidazolium iodide (DMII) as a charge transfer facilitator. Addition ... -
Ionic compounds derived from crude glycerol: Thermal energy storage capability evaluation
Elsevier (2017)Ionic liquids (diimidazol-1-ium esters) prepared from wastes, crude glycerol and carboxylic acids are investigated as potential phase change materials (PCM). The ionic liquids (IL) with best thermophysical properties were ... -
Ionic liquids and biomass as carbon precursors: Synergistically answering a call for CO2 capture and conversion
Elsevier (2022)The alarming rise in carbon dioxide (CO2) emissions has been met with urgent calls to the scientific community and global enterprises. As a solution, CO2 capture and conversion could remove, store, and properly convert some ... -
Large Power Factor Improvement in a Novel Solid–Liquid Thermoelectric Hybrid Device
American Chemical Society (2018-01-09)The performance of thermoelectric materials has been improved in the past few years by a significant reduction of the thermal conductivity, but this parameter has now reached its (amorphous) limit, which makes the enlargement ... -
New porous monolithic membranes based on supported ionic liquid-like phases for oil/water separation and homogenous catalyst immobilisation
Royal Society of Chemistry (2018)Porous monolithic advanced functional materials based on supported ionic liquid-like phase (SILLP) systems were used for the preparation of oleophilic and hydrophobic cylindrical membranes and successfully tested as ...