液体中激光烧蚀法制备纳米材料课件Groupmembers：OuQian,ChaoZhang,DanJia,YanpingSu,LuluWen,GangfengWei,YongkuiWang,DongfangWang,XiangyangSong,WenWang,HaiyingZheng.NanomaterialsGeneratedbyLaserAblationinLiquidsBasicmechanismofLAL(laserablationinliquids)SketchofthemainstagesofLALPhys.Chem.Chem.Phy...
Groupmembers：OuQian,ChaoZhang,DanJia,YanpingSu,LuluWen,GangfengWei,YongkuiWang,DongfangWang,XiangyangSong,WenWang,HaiyingZheng.NanomaterialsGeneratedbyLaserAblationinLiquidsBasicmechanismofLAL(laserablationinliquids)SketchofthemainstagesofLALPhys.Chem.Chem.Phys.,2013,15,3027--3046BasicmechanismofLALSketchoftheplasmaplumeformedbylaserablationofametaltarget.*Denotesexcitedand/orionizedstatesPhys.Chem.Chem.Phys.,2009,11,3805–3821BasicmechanismofLALFeONanoparticlesbyLALAdv.Funct.Mater.2012,22,1333–1353NanoparticlesDerivedfromLALmethodMetastablestructureUltra-smallsizedistributionUnoccupied/chargedsurfacesEasy-functionalizationNewstructuresandpropertiesQuantumsizeeffectsHighactivityandreactivityLAL-inducedNPsStableandsurfacepassivatedNanoparticlesSynthesizedbyChemicalRoutesCappedwithvariousstablereagentstopreventaggregationorreactionA(assembleorgrowth)A+B=C→Newcompounds=AB→CompositesActivityandReactivityCBAAB+A+AAAAAorExamples1.LAL-basedtofabricatecarbon-encapsulatedmetalcarbides2.LAL-basedsynthesisofternaryoxides3.LAL-basedcomplexoxide–noblemetalnanocompositespulselaseracetonetargetTantalumtarget1.LAL-basedtofabricatecarbon-encapsulatedmetalcarbidesTaC@CNPsCarbon,2013,55,108–115NbC@CMoxC@CCo3C@CMoinethonalNbinethonalCoinacetoneMoreproductscanbesynthesized·····theformationprocessofcarbon-encapsulatedmetalcarbides2.LAL-basedsynthesisofternaryoxidesJ.Mater.Chem.,2012,22,17210–17214DesignforternaryoxidesbasedonA+B=CvariousternaryoxidesMorphology,structureandsizecanbemodified…ReactiontemperatureReactiontimepHvalue3.LAL-basedcomplexoxide–noblemetalnanocompositesAdv.Mater.2013,25,2040–2044BriefSummaryLAL-generatedNMspresentuniqueactivity,…beneficialforobtainingnewpropertiesandnewstructuresLAL-generatedNMsdisplayuniquereactivity…canbeusedasprecursorsforpreparingnewmaterialsLaser-generatedNMsshowuniqueapplication…incatalyst,biosensoretc.THANKS
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