نتایج جستجو برای: temperature ionic liquid

تعداد نتایج: 676848  

2009
Kyoil Kim Hee-Young Kang Jae Chan Lee Seong Ho Choi

A multi-walled nanotube (MWNT) ionic liquid was prepared by the immobilization of 1-butylimidazole bromide onto an epoxy group on a poly(glycidyl methacrylate)-grafted MWNT, which was synthesized by radiation-induced graft polymerization of glycidyl methacrylate onto MWNT in an aqueous solution. Subsequently, a MWNT ionic liquid electrode was fabricated by hand-casting MWNT ionic liquid, tyrosi...

Journal: :Molecules 2015
Jolanta Flieger Małgorzata Tatarczak-Michalewska Anna Groszek Eliza Blicharska Ryszard Kocjan

A series of imidazolium and pyridinium ionic liquids with different anions (Cl(-), Br(-), BF₄(-), PF₆(-)) has been evaluated for their adsorption activity on silica gel. Quantification of the ionic liquids has been performed by the use of RP-HPLC with organic-aqueous eluents containing an acidic buffer and a chaotropic salt. Pseudo-second order kinetic models were applied to the experimental da...

Journal: :Physical chemistry chemical physics : PCCP 2012
Yan Shen Danielle F Kennedy Tamar L Greaves Asoka Weerawardena Roger J Mulder Nigel Kirby Gonghua Song Calum J Drummond

A series of 11 new protic ionic liquids with fluorous anions (FPILs) have been identified and their self-assembled nanostructure, thermal phase transitions and physicochemical properties were investigated. To the best of our knowledge this is the first time that fluorocarbon domains have been reported in PILs. The FPILs were prepared from a range of hydrocarbon alkyl and heterocyclic amine cati...

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: :international journal of occupational hygiene 0
hamid shirkhanloo iranian petroleum industry occupational and environmental health research center (ipioehrc), iranian petroleum industry health research institute (ipihri), tehran, iran. mahmood osanloo msc student of medical nano technology, islamic azad university of pharmaceutical sciences (iaups),tehran, iran. orkideh qurban-dadras assistant professor of medical chemistry of islamic azad university of pharmaceutical sciences (iaups),tehran, iran.

the aim of this study was to investigate the removal of toluene from air through nano-graphene modified by ionic liquid (ng-il). the batch adsorption experiments in glass bottle of gas chromatography equipped with flame ionization detector (gc-fid) were used. graphene ultrahigh-quality synthesized by substrate-free gas-phase method in a single step and graphene sheets were deposited with ionic-...

Hassan Tajik, Khodabakhsh Niknam Somayeh Karimian

In this research, different alcohols and phenols are subjected to the reaction with HMDS in the presence of ionic liquid and silica-supported catalysts. Silylation was accomplished under mild reaction conditions at room temperature in short reaction times and good to excellent yields.

Journal: :The journal of physical chemistry. B 2008
Alasdair W Taylor Fulian Qiu Jingping Hu Peter Licence Darren A Walsh

The electrochemical behavior of a redox-active, ferrocene-modified ionic liquid (1-ferrocenylmethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) in acetonitrile and in an ionic liquid electrolyte (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) is reported. Reversible electrochemical behavior was observed in each electrolyte with responses typical of those for unmodifie...

Journal: :Dalton transactions 2014
Alok Rout Koen Binnemans

A new non-fluorinated malonamide-based ionic liquid extractant was synthesized and investigated for the extraction behavior of europium(III) and other trivalent rare-earth ions from nitric acid medium. The extractant was the functionalized ionic liquid trihexyl(tetradecyl)phosphonium N,N,N',N'-tetra(2-ethylhexyl)malonate, [P66614][MA], and it was used in combination with the non-fluorinated ion...

Journal: :Inorganic chemistry 2008
Peter Nockemann Ben Thijs Tatjana N Parac-Vogt Kristof Van Hecke Luc Van Meervelt Bernard Tinant Ingo Hartenbach Thomas Schleid Vu Thi Ngan Minh Tho Nguyen Koen Binnemans

Imidazolium, pyridinium, pyrrolidinium, piperidinium, morpholinium, and quaternary ammonium bis(trifluoromethylsulfonyl)imide salts were functionalized with a carboxyl group. These ionic liquids are useful for the selective dissolution of metal oxides and hydroxides. Although these hydrophobic ionic liquids are immiscible with water at room temperature, several of them form a single phase with ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
ya-feng li yong-peng yuan kai-kai wang jun jia xiao-lin qin

the conversion of the cellulose into 5-hmf would experience three steps, cellulose to glycose, glycose to fructose and fructose to 5-hmf. chloride ion can break down the hydrogen bond in cellucose, chromium can catalyze the isomerization of glycose to fructose, and the high temperature is helpful to cyclohydration of fructose to 5-hmf. in this paper, the sawdust has been directly degraded into ...

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