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外文翻译---使用直流电弧等离子体喷射合成纳米级掺锑锡氧化物粒子.doc

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外文翻译---使用直流电弧等离子体喷射合成纳米级掺锑锡氧化物粒子.doc

英文原文SYNTHESISOFNANOSIZEDANTIMONYDOPEDTINOXIDEATOPARTICLESUSINGADCARCPLASMAJETKEYWORDSTHERMALPLASMAANTIMONYDOPEDTINOXIDEATONANOPOWDERABSTRCTNANOSIZEDANTIMONYDOPEDTINOXIDEATOPARTICLESWERESYNTHESIZEDUSINGDCARCPLASMAJETTHEPRECURSORSSNCL4ANDSBCL5WEREINJECTEDINTOTHEPLASMAFLAMEINTHEVAPORPHASEATOPOWDERCOULDCONVENIENTLYBESYNTHESIZEDWITHOUTANYOTHERPOSTTREATMENTINTHISSTUDYTOCONTROLTHEDOPINGAMOUNTOFANTIMONYINTHEATOPARTICLES,THESB/SNMOLARRATIOWASUSEDASANOPERATINGVARIABLETOSTUDYTHEEFFECTOFCARRIERGASONTHEPARTICLESIZE,ARGONANDOXYGENGASESWEREUSEDTHERESULTSOFXRDANDTGASHOWTHATALLSBIONSPENETRATEDTHESNO2LATTICETOSUBSTITUTESNIONSWITHTHEINCREASEDSBCL5CONCENTRATIONINSOURCEMATERIAL,THESBDOPINGLEVELWASALSOINCREASEDTHESIZEOFTHEPARTICLESSYNTHESIZEDUSINGTHEARGONCARRIERGASWASMUCHSMALLERTHANTHATOFTHEPARTICLESPREPAREDUSINGTHEOXYGENCARRIERGASFORTHEARGONGAS,PSARESULTSANDSEMIMAGESREVEALTHATTHEAVERAGEPARTICLESIZEWAS19NMHOWEVER,FORTHEOXYGENGAS,THEAVERAGEPARTICLESIZEWAS31NM1INTRODUCTIONSNO2ISATYPICALWIDEBANDGAPSEMICONDUCTORANDITSCONDUCTIVITYISGENERALLYREALIZEDBYNONSTOICHIOMETRYASSOCIATEDWITHOXYGENVACANCIESINTHESNO2LATTICEHOWEVER,THECONTENTOFOXYGENVACANCIESINSNO2ISTYPICALLYDIFFICULTTOCONTROLTINOXIDEDOPEDWITHSB,MO,ANDFHASBEENSTUDIEDINTHEPASTDUETOTHEUNIQUEPROPERTIESOFTHEDOPEDTINOXIDESUCHASPREFERABLECONDUCTIVITYANDTRANSPARENCYINVISIBLELIGHTWAVELENGTHRANGEINPARTICULAR,SBISCONSIDEREDTHEBESTDOPANTDUETOITSSTABILITYANTIMONYDOPEDTINOXIDEATOISANNTYPESEMICONDUCTORWITHELECTRONSINTHETIN5BASEDCONDUCTIONBANDPROVIDEDBYTHEANTIMONYDOPANTTHECONDUCTIVITYANDTRANSPARENCYCANBECONTROLLEDBYVARYINGTHEAMOUNTOFSBDOPANTINSTEADOFBYMANIPULATINGTHENONSTOICHIOMETRYATOHASBEENSTUDIEDINTHEPASTTOMEASUREITSPROPERTIESOFTHEINHERENTELECTROCHROMISMASWELLASITSCAPACITYFORUSEINCHARGESTORAGEANDASACATALYSTATLOWSBDOPINGLEVEL,ATOHASPROPERTIESOFTRANSPARENCYATTHEVISIBLEREGIONWITHGOODCONDUCTIVITY,WHILEREFLECTINGINFRAREDLIGHTTHESECHARACTERISTICSENABLEATOTOBEUSEDASATRANSPARENTELECTRODEFORELECTROCHEMICALDEVICES,DISPLAYS,ANDHEATMIRRORSANDENERGYSTORAGEDEVICESHEAVILYDOPEDATOISAGOODCATALYSTFORTHEOXIDATIONOFPHENOLANDOLEFINANDTHEDEHYDROGENATIONANDAMMOXIDATIONOFALKENESTHUSFAR,ATOPARTICLESHAVEBEENMAINLYSYNTHESIZEDBYSOLIDANDLIQUIDSTATEREACTIONMETHOD,SUCHASSOLIDSTATEREACTION,COPRECIPITATION,AHYDROTHERMALMETHOD,ANDASOL–GELMETHODALTHOUGHSOLIDANDLIQUIDSTATEREACTIONSARECONSIDEREDSUITABLEMETHODSTOSYNTHESIZEATONANOPOWDER,THESEAPPROACHESREQUIREALARGEQUANTITYOFSOLUTIONANDORGANICMATERIALS,LONGERPROCESSINGTIME,HEATTREATMENTFORCRYSTALLIZATION,FILTRATION,ANDDRYINGPROCESSTOOVERCOMETHESEWEAKPOINTS,INTHEPRESENTWORKWEINTRODUCEATHERMALPLASMAPROCESSTOSYNTHESIZEATONANOPOWDERSTHETHERMALPLASMAPROCESSHASUNIQUECHARACTERISTICSFORTHEPREPARATIONOFNANOPOWDERSASITINVOLVESHIGHTEMPERATUREANDAQUENCHINGSYSTEMINTHISPAPER,NANOSIZEDATOPOWDERSWERESYNTHESIZEDBYANARGONPLASMAJETATATMOSPHERICPRESSURETOCONTROLTHEDOPINGAMOUNTOFATO,DIFFERENTSB/SNMOLARRATIOSWEREAPPLIEDTHEEFFECTSOFTHESBDOPANTONTHEPHASECOMPOSITIONANDPARTICLESIZEHAVEBEENDISCUSSED2EXPERIMENTALNANOSIZEDATOWASSYNTHESIZEDUSINGANARGONPLASMAJETATATMOSPHERICPRESSUREPRECURSORSWERETINIVCHLORIDESNCL4,999,ALDRICHCOANDANTIMONYPENTACHLORIDESBCL5,99,ALDRICHCOBECAUSESNCL4ANDSBCL5EASILYEVAPORATEATROOMTEMPERATUREANDPRESSURE,THEYWEREINJECTEDINTOTHEPLASMAFLAMEINAVAPORFIG1SCHEMATICDIAGRAMOFDCPLASMAJETFORSYNTHESISOFATONANOPOWDERSTABLE1EXPERIMENTALCONDITIONSFORSYNTHESISOFNANOSIZEDPOWDERPLASMAPOWER300A,69KWPLASMAGASAR15L/MINPRESSURE750TORRDURATIONOFEXPERIMENT10MINSOURCEMATERIALSTINVICHLORIDE999,ALDRICHCO,FEEDRATE041G/MINCARRIERGASAR2L/MINANTIMONYPENTACHLORIDE99,ALDRICHCO,FEEDRATE0076G/MINCARRIERGASAR2L/MINPHASEWITHOUTADDITIONALHEATINGFIG1SHOWSASCHEMATICDIAGRAMOFTHEDCPLASMASYSTEMTHESOURCEMATERIALWASINJECTEDINTOTHEPLASMAFLAMETHROUGHABUBBLERBYCARRIERGASESOFARANDO2THECARRIERGASFLOWRATEFORINJECTIONOFTHESOURCEMATERIALSWASMAINTAINEDAT2L/MINTHECONCENTRATIONOFSBCL5INTHESOURCEMATERIALWASVARIEDINORDERTOCONTROL

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