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1、JournalofColloidandInterfaceScience344(2010)286–291ContentslistsavailableatScienceDirectJournalofColloidandInterfaceSciencewww.elsevier.com/locate/jcisConvenientsynthesisofsilvernanowireswithadjustablediametersviaasolvothermalmethodaa,*baaDapengChen,XueliangQiao,XiaolinQiu,Jiang
2、uoChen,RenzhiJiangaStateKeyLaboratoryofPlasticFormingSimulationandDieandMouldTechnology,HuazhongUniversityofScienceandTechnology,Wuhan,430074Hubei,People’sRepublicofChinabNanomaterialsResearchCenter,NanchangInstituteofTechnology,Nanchang,330013Jiangxi,People’sRepublicofChinaarti
3、cleinfoabstractArticlehistory:SilvernanowireshavebeensuccessfullysynthesizedviaasimplesolvothermalmethodbyaddingsodiumReceived16September2009sulfide(Na2S)intothesolution.TheAg2Scolloidsproducedintheinitialstagehelpreducetheconcen-Accepted24December2009++trationoffreeAgionsinthein
4、itialformationofsilverseedsandsubsequentlyreleaseAgionstotheAvailableonline4January2010solution.Otherwise,thereisnooxidativeetchingowingtotheabsenceofoxygen.Inthesecases,silvernanowiresaregrownpreferentially.Furthermore,silvernanowireswithadjustablediameterscanbeKeywords:obtaine
5、dbyadjustingtheconcentrationofNaS.Electronmicroscopy,X-raydiffraction,andabsorption2Silvernanowiresspectrahavebeenusedtoinvestigatetheproducts,andamechanismisproposedtointerpretthecon-Na2Strolledsynthesisofsilvernanowires.Finally,ourresultsindicatethatthisapproachprovidesaversat
6、ileSolvothermalmethodroutetopreparesilvernanowireswithcontrollablediameters.Ó2009ElsevierInc.Allrightsreserved.1.Introductiontraceamountsofsaltstothepolyolsynthesishasbeenshowntoinfluencethefinalmorphologyoftheproducts.Forexamples,Xia1-Dmetallicnanostructures(rods,wires,belts,andt
7、ubes)etal.havereportedthatthepresenceofFeCl3andCuCl2facilitateshavebeenextensivelyexploredduetotheiruniqueelectrical,thegrowthofsilvernanowiresinaconventionalpolyolprocess+optical,magnetic,andthermalproperties,aswellastheir[29,30].TheanioncanreducetheconcentrationoffreeAginthein
8、terestingapplicationsinmicroelectronicsandbiolo
