铜纳米颗粒的制备与表征

(),2008,30(4):388~391CN53-1045/NISSN0258-7971JournalofYunnanUniversity王国伟,施树春(,730070):-,CTAB,,,;S--N--(PAMDTCD),.FTIR,TEM,XPSXRD.,PAMDTCD,.:;;:TB383:A:0258-7971(2008)04-0388-04[1],[2~6].:[7][8].,,,[9],,,.,-,,CTAB,,;PAMDTCD,,.11.1()(95%)CTAB(,);()95%;;PAMDTCD.1.2PAMDTCDCTAB0.002molCu(NO3)2.3H2O15mL15mL,0.4mol/LNaBH41mol/LNaOH30mL,0.2mol/LPAMDTCD15mL,10min30mL.,,,,.,.1.3JEM-1200EX/S(TEM),Bio-RadFTS-165,PHI-5702X,PhilipsXPert-proX.2,,NaBH4,,[7],,,,,,.[10],:2008-03-02:(0710RJZA074);(0711B-04).:(1966-),,,,,..,N,N-,,.1PAMDTCD.1PAMDTCDFig.1SketchmapoftheCunanoparticlesmodifiedwithPAMDTCD2PAMDTCD.2,3446cm-1N!H,2919cm-12850cm-1!CH2!.1714cm-1CO,1465cm-1,1361cm-1,1218cm-1CS.PAMDTCD,PAMDTCD.3(a)PAMDTCD(b)TEM.,,,6.57.5nm,.PAMDTCD,,PAMDTCD,,[11].3b,,PAMDTCD.,,,,,,,.PAMDTCD,1,,;,,.,,.PAMDTCD,,.2PAMDTCDFig.2TransmissionFTIRspectrumoftheCunanoparticlesmodifiedwithPAMDTCD4(a)PAMDTCD(b)XPS.abCu2p932.5eV932.7eV,(932.7eV).aO1S530.1eV,.bO1S532.3eV,(529.3eV)(530.1eV)[12]O1S,PAMDTCD.,PAMDTCD,,.5(a)PAMDTCD(b)XRD.,Cu,Cu2O.PAMDTCD3894:,Cu2O,20∀~40∀,.XRDPAMDTCD.,,PAMDTCDCu.3(a)PAMDTCD(b)TEMFig.3TEMpatternsoftheCuhydrosol(a)andPAMDTCDmodifiedCunanoparticles(b)4(a)PAMDTCD(b)XPSFig.4XPSspectraoftheneatCunanoparticles(a)andPAMDTCDmodifiedCunanoparticles(b)5(a)PAMDTCD(b)XRDFig.4XRDpatternsoftheCuhydrosol(a)andPAMDTCDmodifiedCunanoparticles(b)390()303(1)-,,PAMDTCD,.(2)PAMDTCD,,.:[1]LEWISLN.Chemicalcatalysisbycolloidsandclusters[J].ChemRev,1993,93:26932730.[2],,.[J].,1995,16(4):304307.[3]TARASOVNS,KOLUBAEVA,BELYAEVS,etal,Studyoffrictionreductionbynanocopperadditivestomotoroil[J].Wear,2002,252:6369.[4],,,.[J].,1999,3:3335.[5],,,[J].,2001,9(223):184190.[6]RAORS,WALTERSAB,VANNICEMA.Influenceofcrystallitesizeonacetonehydrogenationovercoppercatalysts[J].JournalofPhysicsandChemistryB,2005,109:20862092.[7],.[J].,2001,19(2):7679.[8],,,.[J].,1998,22(3):3337.[9],,,.[J],,2006,18(4):591594.[10]WONGWWH,COOKSONJ,EVANSEAL,etal.Heteropolymetalliccopper(II)gold(III)dithiocarbamate[2]catenanesviamagicringsynthesis[J].ChemCommun,2005,22142216.[11]YANGJ,LEEJY,DEIVARAJTC,etal.AhighlyefficientphasetransfermethodforpreparingalkylaminestabilizedRu,Pt,andAunanoparticles[J].JournalofColloidandInterfaceScience,2004,277:9599.[12]LAIBINISPE,WHITESIDEGM.Selfassembledmonolayersofnalkanethiolatesoncopperarebarrierfilmsthatprotectthemetalagainstoxidationbyair[J].JAmChemSoc,1992,114:90229028.SynthesisandcharacterizationofthecoppernanoparticlesWANGGuowei,SHIShuchun(DepartmentofPhysics,LanzhouCityUniversity,Lanzhou730070,China)Abstract:CopperhydrosolwerepreparedfromthesolutionofcoppernitratewithNaBH4byreductivereactioninwaterandethanolwatersysteminthepresenceofNaOHandCTAB,andthecopperhydrosolweretransferredintoorganicphasebytheadditionofPAMDTCD.FTIR,TEM,XPSandXRDwereutilizedtoinvestigatethestructureandstabilityofcoppernanoparticlesmodifiedwithPAMDTCD.Theresultsshowedthatthemodifiedcoppernanoparticlesarestableinambientconditions,whichisattributedtotheprotectionofthePAMDTCDmoleculardenselypackedonthecoppersurface.Keywords:nanoparticles;copper;polyacrylamide3914: