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时间:2020-10-20
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1、CatalysiswithIonicLiquids:ProgressandProspectsYouquanDENGCentreforGreenChemistryandCatalysisLanzhouInstituteofChemicalPhysicsChineseAcademyofSciencesLanzhou,730000,China1.INTRODUCTION:WhatareionicliquidsRoomtemperatureILscontainorganiccationsandinorganicanionsN-alkylimidazolium
2、N-alkylpyridiniumquaternaryammoniumquaternaryalkylphosphoniumFunctionalgroupse.g.X=NH2,SO3H,CO2H,etc.incorporateduponthesidechainofImidazolium[CF3COO]-[CF3SO2]-[BF4]-[PF6]-[(CF3SO2)2N]-AirandwaterstableDecreasingcoordinatingabilibityIncreasinghydrophobicitySecondgenerationILsTypic
3、alcations[AlCl4]-[AuCl4]-[PdCl4]2-TypicalanionsReactivetowaterFirstgenerationILsFunctionalILsThirdgenerationILsNew!Chloroaluminate1.INTRODUCTION:PropertiesofionicliquidsLowermeltingpoint:<-90oCNegligiblevaporpressure:GreensolventsLargeliquidrange>200oCSelectivedissolvability:‘liqu
4、id’zeoliteDesignable:Acidity,Density,HydrophilityDiversity:overatrillionpossibleGoodelectrechemicalsatbility:E.W.ca5VHighthermalstability>400oCILscontaning1-alkyl-3methylimidazoliumcationsStrongcoulombicforce:MuchdifferentfrommolecularsolventsILspossesssomespecialphysicalandchemic
5、alpropertiesreasonablygoodelectricalconductivity(25mS/cm)1.INTRODUCTION:GeneralsituationofILsresearchca.200papershaveappearedonthe226thACSNationalMeetingHundredspatentsonILshavealsobeenissuedCatalysisOrganicsynthesisSeparation&analysisFunctionalmaterialslifesciencesThefigureillust
6、ratesthegrowthinpublicationsonILsAtleastanother500paperswillappearedbytheendof2003TherehasbeenmuchworkperformedonILsasreactionmediaorfunctionalmaterialsLubricants,sensing&opticalmaterialsStationaryphaseforGC,treatingnuclearwasteElectrochemistryNanotechnologyCleanenergyHeack,Beckma
7、nnetcNano-metalparticles,filmElectrolytes,ElectrodepositionElectrolytesforsolarcell,batteryArtificialmuscle,drugreservoirs1.INTRODUCTION:GeneralresearchsituationofcatalysiswithILsILsascatalystsorreactionmediahavebeenreportedtohaveexcellentperformancesformanycatalyticreactionsCatal
8、yticreactionsusingILsasreactionme
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