液体中激光烧蚀法制备纳米材料教学内容.ppt

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1、液体中激光烧蚀法制备纳米材料BasicmechanismofLALSketchoftheplasmaplumeformedbylaserablationofametaltarget.*Denotesexcitedand/orionizedstatesPhys.Chem.Chem.Phys.,2009,11,3805–3821BasicmechanismofLALFeONanoparticlesbyLALAdv.Funct.Mater.2012,22,1333–1353NanoparticlesDerivedfromLALmethodMe

2、tastablestructureUltra-smallsizedistributionUnoccupied/chargedsurfacesEasy-functionalizationNewstructuresandpropertiesQuantumsizeeffectsHighactivityandreactivityLAL-inducedNPsStableandsurfacepassivatedNanoparticlesSynthesizedbyChemicalRoutesCappedwithvariousstablereagent

3、stopreventaggregationorreactionA(assembleorgrowth)A+B=C→Newcompounds=AB→CompositesActivityandReactivityCBAAB+A+AAAAAorExamples1.LAL-basedtofabricatecarbon-encapsulatedmetalcarbides2.LAL-basedsynthesisofternaryoxides3.LAL-basedcomplexoxide–noblemetalnanocompositespulselas

4、eracetonetargetTantalumtarget1.LAL-basedtofabricatecarbon-encapsulatedmetalcarbidesTaC@CNPsCarbon,2013,55,108–115NbC@CMoxC@CCo3C@CMoinethonalNbinethonalCoinacetoneMoreproductscanbesynthesized·····theformationprocessofcarbon-encapsulatedmetalcarbides2.LAL-basedsynthesisof

5、ternaryoxidesJ.Mater.Chem.,2012,22,17210–17214DesignforternaryoxidesbasedonA+B=CvariousternaryoxidesMorphology,structureandsizecanbemodified…ReactiontemperatureReactiontimepHvalue3.LAL-basedcomplexoxide–noblemetalnanocompositesAdv.Mater.2013,25,2040–2044BriefSummaryLAL-g

6、eneratedNMspresentuniqueactivity,…beneficialforobtainingnewpropertiesandnewstructuresLAL-generatedNMsdisplayuniquereactivity…canbeusedasprecursorsforpreparingnewmaterialsLaser-generatedNMsshowuniqueapplication…incatalyst,biosensoretc.THANKS此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做

7、得更好！谢谢