نتایج جستجو برای: temperature ionic liquid

تعداد نتایج: 676848  

2015
Kisoo Yoo Anirudh Deshpande Soumik Banerjee Prashanta Dutta

Room temperature ionic liquids are considered as potential electrolytes for high performance and safe lithium batteries due to their very low vapor pressure and relatively wide electrochemical and thermal stability windows. Unlike organic electrolytes, ionic liquid electrolytes are molten salts at room temperature with dissociated cations and anions. These dissociated ions interfere with the tr...

Journal: :Chemical communications 2010
Josep Casamada Ribot Carlos Guerrero-Sanchez Richard Hoogenboom Ulrich S Schubert

The aqueous gelation of a quaternary ammonium oligo(propylene oxide)-based ionic liquid yields ion gels with a reverse thermoresponsive behavior (i.e., mechanical moduli and viscosity increase with temperature) and enhanced ionic conductivities.

Journal: :Chemical communications 2007
A Lee Miller Ned B Bowden

A room temperature ionic liquid was used as the solvent for metathesis reactions with the Schrock catalyst and a new method to facilitate separation between small molecules and ionic liquids using polydimethylsiloxane thimbles is reported.

Studying the interaction of pharmaceutical ionic liquids with human serum albumin (HSA) can help investigating whether or not ionic liquid formation can enhance pharmacological profile of the discrete ingredients. In this respect, in the present work, the interactions of Benzalkonium Ibuprofenate, as a well-known active pharmaceutical ionic liquid, Benzalkonium Chloride, and also Sodium Ibuprof...

2013
Ana Filipa M. Cláudio Ana M. Ferreira Mara G. Freire João A. P. Coutinho

The extraction of caffeine from bioresources using more benign and cost-effective processes is of fundamental relevance towards the finding of alternative (bio)pesticides. Classically, the best attempts to extract caffeine from biomass have resulted in low efficiency and in a large consumption of hazardous organic solvents and/or energy requirements. Here, we report an enhanced and selective ex...

Journal: :iranian journal of catalysis 2011
ahmed ali hullio g.m. mastoi

a direct and an efficient conversion of a wide range of primary, secondary even tertiary alcohols to the corresponding iodides have been achieved under ionic liquid conditions. the method involves preparation of ionic liquid-based iminium chloride intermediate from dmf-like ionic liquid then stirring it with alcohol in present of sodium iodide. the higher yields of alkyl iodides were obtained w...

Journal: :Physical chemistry chemical physics : PCCP 2010
Congmin Wang Huimin Luo Haoran Li Sheng Dai

The hallmark of ionic liquids lies in their negligible vapor pressure. This ultralow vapor pressure makes it difficult to conduct the direct spectroscopic measurement of ionic-liquid vapors. In fact, there have been no electronic spectroscopic data currently available for ionic-liquid vapors. This deficiency significantly hampers the fundamental understanding of the unique molecular structures ...

2014
Alok Rout Koen Binnemans

The extraction behavior of neodymium and other rare earths from nitric acid media by the functionalized ionic liquid trioctylmethylammonium dioctyl diglycolamate, [A336][DGA], was investigated. The nonfluorinated ionic liquid trioctylmethylammonium nitrate, [A336][NO3], was used as diluent. The extraction behavior of neodymium(III) in this ionic liquid solution was carried out as a function of ...

Journal: :journal of oil, gas and petrochemical technology 2014
saideh marhamati amir abbas izadpanah ahmad azari mojtaba rezaei

the simplified perturbed chain statistical associating fluid theory (spc-saft) equation of state (eos) was proposed to describe the thermodynamic properties of pure ionic liquids (ils). a set of spc-saft parameters for 2 ils was obtained by fitting the experimental liquid densities data over a wide range of temperature at atmospheric pressure. good agreement with experimental density data was o...

Journal: :Organic & biomolecular chemistry 2015
Sinead T Keaveney Ronald S Haines Jason B Harper

The reaction of a series of substituted benzaldehydes with hexylamine was examined in acetonitrile and an ionic liquid. In acetonitrile, as the electron withdrawing nature of the substituent increases, the overall addition-elimination process becomes faster as does the build-up of the aminol intermediate. Under equivalent conditions in an ionic liquid, less intermediate build up is observed, an...

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