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1、ViewOnlinePAPERwww.rsc.org/materials
2、JournalofMaterialsChemistryPorousCeO2nanowires/nanowirearrays:electrochemicalsynthesisandapplicationinwatertreatmentaaaabaXi-hongLu,De-zhouZheng,Jia-yongGan,Zhao-qingLiu,Chao-lunLiang,PengLiu*aandYe-xiangTong*Received23rdFebruary2010,Accepted27thMay2010DOI:10
3、.1039/c0jm00487aHerein,wepresentatemplate-andsurfactant-freeelectrochemicalmethodforthefabricationofhierarchicalporousCeO2NWsandNWAs.TheseporousNWs/NWAshavediametersof50200nmandlengthsofuptoseveralmicrometres.BoththeNWsandNWAsexhibitanexcellentabilitytoremoveCongoredinwastewatertreatment.Introdu
4、ctionCeO2isamultifunctionalrareearthoxidewithexcellentphysicalandchemicalpropertiesandhasimportantapplicationsInrecentyears,onedimensional(1D)nanostructuressuchasinthefieldsofcatalysis,electrochemistry,photochemistry,andnanorods,nanowires,nanobeltshavebeenofgreatinterestin16–18materialsscience.In
5、recentyears,greatadvanceshavebeentermsoftheirpeculiarpropertiesandfascinatingapplications.madeinthemorphology-controllablesynthesisofCeO2nano-Theyarepromisingcandidatesforthefabricationofelectronic,structures,whichprovidesnewopportunitiesfordesigningCeO2optoelectronic,electrochemical,andelectrom
6、echanicalnano-nanomaterialswithdesiredproperties.Todate,variousCeO2devicesasinterconnectsandfundamentalbuildingblocks.1,2Ofnanostructuressuchasnanoparticles,19nanorods,20nanowires,21particularinterestisthedesignanddevelopmentofporous1Dnanotubes,22nanocubes,23nanospheres,24andhierarchicalnanostru
7、ctures,whicharedramaticallybeneficialforcatalysis,25nanostructureshavebeenreported.Thesenanomaterialsbioengineering,environmentalprotection,sensors,andphoto-exhibitsuperiorpropertiesrelativetotheirbulk.Oneofthemostvoltaicdevicesduetotheirultra-highsurfaceareas.3–6Consid-notablefindingsistheirphoto
8、voltaicresponse.Cormaetal.26erableeffortshavebeendevotedtofabricatingporous1DfoundthatthehierarchicalCeO2mesostructuresexhibitnanostructuresandremarkableprogresshasbeenachievedinaphotovoltaicresponsewhilenormalCeO2doesnot.An
