1、英文原文Synthesisofnano-sizedantimony-dopedtinoxide(ATO)particlesusingaDCarcplasmajetKeywords/ThermalplasmaAntimony-dopedtinoxide(ATO)NanopowderAbstrctNano-sizedantimony-dopedtinoxide(ATO)particlesweresynthesizedusingDCarcplasmajet/TheprecursorsSnCl4andSbCl5wereinjectedintotheplasmaflameinthevaporphase/
2、ATOpowdercouldconvenientlybesynthesizedwithoutanyotherpost-treatmentinthisstudy/TocontrolthedopingamountofantimonyintheATOparticles/theSb/Snmolarratiowasusedasanoperatingvariable/Tostudytheeffectofcarriergasontheparticlesize/argonandoxygengaseswereused/TheresultsofXRDandTGAshowthatallSbionspenetrate
3、dtheSnO2latticetosubstituteSnions/WiththeincreasedSbCl5concentrationinsourcematerial/theSbdopinglevelwasalsoincreased/Thesizeoftheparticlessynthesizedusingtheargoncarriergaswasmuchsmallerthanthatoftheparticlespreparedusingtheoxygencarriergas/Fortheargongas/PSAresultsandSEMimagesrevealthattheaveragep
4、articlesizewas19nm/However/fortheoxygengas/theaverageparticlesizewas31nm/1/IntroductionSnO2isatypicalwidebandgapsemiconductoranditsconductivityisgenerallyrealizedbynon-stoichiometryassociatedwithoxygenvacanciesintheSnO2lattice/However/thecontentofoxygenvacanciesinSnO2istypicallydifficulttocontrol/Ti
5、noxidedopedwithSb/Mo/andFhasbeenstudiedinthepastduetotheuniquepropertiesofthedopedtinoxidesuchaspreferableconductivityandtransparencyinvisiblelightwavelengthrange/Inparticular/Sbisconsideredthebestdopantduetoitsstability/Antimony-dopedtinoxide(ATO)isann-typesemiconductorwithelectronsinthetin5-basedc
6、onductionbandprovidedbytheantimonydopant/TheconductivityandtransparencycanbecontrolledbyvaryingtheamountofSbdopantinsteadofbymanipulatingthenon-stoichiometry/ATOhasbeenstudiedinthepasttomeasureitspropertiesoftheinherentelectrochromismaswellasitscapacityforuseinchargestorageandasacatalyst/AtlowSbdopi
7、nglevel/ATOhaspropertiesoftransparencyatthevisibleregionwithgoodconductivity/whilereflectinginfraredlight/ThesecharacteristicsenableATOtobeusedasatransparentelectrodeforelectrochemicaldevices/displays/andheatmirrorsandenergystoragedevices/HeavilydopedATOisagoodcatalystfortheoxidationofphenolandolefi
8、nandthedehydrogenationandammoxidationofalkenes/Thusfar/ATOparticleshavebeenmainlysynthesizedbysolidandliquidstatereactionmethod/suchassolidstatereaction/coprecipitation/ahydrothermalmethod/andasolgelmethod/AlthoughsolidandliquidstatereactionsareconsideredsuitablemethodstosynthesizeATOnanopowder/thes
9、eapproachesrequirealargequantityofsolutionandorganicmaterials/longerprocessingtime/heattreatmentforcrystallization/filtration/anddryingprocess/Toovercometheseweakpoints/inthepresentworkweintroduceathermalplasmaprocesstosynthesizeATOnanopowders/Thethermalplasmaprocesshasuniquecharacteristicsforthepre
10、parationofnanopowdersasitinvolveshightemperatureandaquenchingsystem/Inthispaper/nano-sizedATOpowdersweresynthesizedbyanargonplasmajetatatmosphericpressure/TocontrolthedopingamountofATO/differentSb/Snmolarratioswereapplied/TheeffectsoftheSbdopantonthephasecompositionandparticlesizehavebeendiscussed/2
11、/ExperimentalNano-sizedATOwassynthesizedusinganargonplasmajetatatmosphericpressure/Precursorsweretin(IV)chloride(SnCl4/99/9%/AldrichCo/)andantimonypentachloride(SbCl5/99%/AldrichCo/)/BecauseSnCl4andSbCl5easilyevaporateatroomtemperatureandpressure/theywereinjectedintotheplasmaflameinavaporFig/1/Schem
12、aticdiagramofDCplasmajetforsynthesisofATOnanopowders/Table1Experimentalconditionsforsynthesisofnano-sizedpowderPlasmapower300A/6/9kWPlasmagasAr/15l/minPressure750TorrDurationofexperiment10minSourcematerialsTin(VI)chloride(99/9%/AldrichCo/)/feedrate/0/41g/min(carriergas/Ar2l/min)Antimonypentachloride
13、(99%/AldrichCo/)/feedrate/0/076g/min(carriergas/Ar2l/min)phasewithoutadditionalheating/Fig/1showsaschematicdiagramoftheDCplasmasystem/ThesourcematerialwasinjectedintotheplasmaflamethroughabubblerbycarriergasesofArandO2/Thecarriergasflowrateforinjectionofthesourcematerialswasmaintainedat2l/min/TheconcentrationofSbCl5inthesourcematerialwasvariedinordertocontrol
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