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1、12658J.Phys.Chem.B2003,107,12658-12661SynthesisofCopperNanowiresviaaComplex-Surfactant-AssistedHydrothermalReductionProcessZhaopingLiu,2YouYang,2JianboLiang,2ZhaokangHu,2ShuLi,2ShengPeng,2andYitaiQian*,2,3StructureResearchLaboratoryandDepartmentofChemistry,
2、UniVersityofScienceandTechnologyofChina,Hefei,Anhui230026,P.R.ChinaReceiVed:July14,2003;InFinalForm:September16,2003Thispaperdescribesasimplecomplex-surfactant-assistedhydrothermalreductionapproachtothefacilesynthesisofmetalcoppernanowireswithaveragediamete
3、rsof85nmandlengthsofseveraltensofmicrometers.ThesecoppernanowireswereformedthroughthereductionoftheCuII-glycerolcomplexes(Cu(C3H6O3))byphosphite(HPO32-)inthepresenceofsurfactantsodiumdodecylbenzenesulfonate(SDBS)at120°C.High-resolutiontransmissionelectronm
4、icroscopy(HRTEM)andselected-areaelectrondiffraction(SAED)indicatethattheresultednanowireshadpreferred[11h0]growthdirection.TheformationmechanismforCunanowireshadbeenproperlyproposed.Someinfluencingfactorsonthemorphologiesofthefinalproductshadalsobeendiscuss
5、ed.IntroductionSuchaprocessinvolvedthenucleationofcoppernanoparticlesthroughthereductionofthecomplexCuII-glycerolbyHPO32-One-dimensional(1D)nanostructuresofmetalsareexpectedinahighconcentrationofNaOHandglycerolaqueoussolutionstoplayanimportantroleinfabricat
6、ingnanoscaleelectronic,andthenthegrowthofcoppernanowireswiththeassistanceofoptoelectronic,andmagneticdevices,whichalsoprovideanasuitablesurfactant,sodiumdodecylbenzenesulfonate(SDBS).idealmodelsystemtoexperimentallyinvestigatephysicalTheredoxreactioncanbeex
7、pressedasphenomenasuchasquantizedconductanceandsizeeffects.1Amongallmetals,copperisthemostcommonlyusedasan2--3-interconnectduetoitshighelectricalconductivity.Theavail-Cu(C3H6O3)+HPO3+OH)Cu+C3H8O3+PO4abilityofcoppernanowireswithwell-defineddimensionsshouldbe
8、abletobringinnewtypesofapplicationsorenhancetheExperimentalSectionperformanceofcurrentlyexistingelectricdevicesasaresultof2Allofthechemicalregentsusedinthisexperimentwerequantum-sizeeffects.Uptonow,the