资源描述：
《analysis of XPS Fe2+,Fe3+(用XPS分析物质中的二价和三价铁离子).pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、Availableonlineatwww.sciencedirect.comAppliedSurfaceScience254(2008)2441–2449www.elsevier.com/locate/apsusc2+3+AnalysisofXPSspectraofFeandFeionsinoxidematerialsToruYamashita*,PeterHayesPyrometallurgyResearchCentre,SchoolofEngineering,UniversityofQueensland
2、,Qld4072,AustraliaReceived25September2006;receivedinrevisedform31July2007;accepted21September2007Availableonline29September2007AbstractSamplesoftheironoxidesFe0.94O,Fe3O4,Fe2O3,andFe2SiO4werepreparedbyhightemperatureequilibrationincontrolledgasatmospheres.
3、ThesampleswerefracturedinvacuumandhighresolutionXPSspectraofthefracturedsurfacesweremeasured.Thepeakpositionsandpeakshape2+3+parametersofFe3pforFeandFewerederivedfromtheFe3pXPSspectraofthestandardsamplesof2FeOSiO2andFe2O3,respectively.Usingtheseparameters
4、,theFe3ppeaksofFe3O4andFe1yOareanalysed.TheresultsindicatethathighresolutionXPStechniquescanbeusedto2+3+determinetheFe/Feratiosinmetaloxides.Thetechniquehasthepotentialforapplicationtoothertransitionmetaloxidesystems.#2007ElsevierB.V.Allrightsreserved.Key
5、words:XPS;Ironoxide;Quantitativeanalysis;Chemicalstate1.Introductiondataonallspeciesareincorporatedintochemicalthermo-dynamicmodelsofthesystem.ThetransitionmetalspossessThechemicalsystemsencounteredinthehightemperaturetheabilitytoexistinanumberofdifferento
6、xidationstatesinsmeltingofnon-ferrousmetalsarecomplexinthattypicallybothsolidandliquidoxides.Forexample,species,suchas,as2+3+2+3+theyironcanbepresentasFeorFe;chromiumasCr,Cror6+2+3+4+2+Cr;manganeseasMn,MnorMn;antimonyasSbor(i)containmanychemicalspecies,som
7、eelementsbeing5+2+4+2+3+4+Sb;tinasSnorSn;titaniumasTi,TiorTi;presentinanumberofdifferentoxidationstates,3+4+5+vanadiumasV,VorV.(ii)involvethecoexistenceofsolidandliquidphases,andX-rayphotoelectronspectroscopy(XPS)isaversatile(iii)thechemicalspeciespresenti
8、nthesystemarepartitionedsurfaceanalysistechniquethatcanbeusedforcompositionalbetweenliquidmetalalloy,andliquidandsolidoxideandchemicalstatesanalysis.SinceX-raysareusedforthephases.incidentbeaminXPS,theXPStech
