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硼氮共掺杂碳纳米管包覆金属纳米颗粒还原氧化石墨烯的吸波特性研究.docx

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硼氮共掺杂碳纳米管包覆金属纳米颗粒还原氧化石墨烯的吸波特性研究 Title:InvestigationoftheAbsorptionPropertiesofBoronandNitrogenCo-DopedCarbonNanotubesCoatedwithMetalNanoparticlesfortheReductionofOxidizedGraphene Abstract: Inrecentyears,thefieldofelectromagneticwaveabsorptionmaterialshasgainedsignificantattentionduetoitspotentialapplicationsinawiderangeofindustries.Thisstudyfocusesontheinvestigationoftheabsorptionpropertiesofboronandnitrogenco-dopedcarbonnanotubes(BNCNTs)coatedwithmetalnanoparticlesforthereductionofoxidizedgraphene.Thegoalistoenhancetheabsorptioncapacityofthegraphenematerialbymodifyingitssurfaceproperties.TheexperimentalresultsdemonstratethattheBNCNTscoatedwithmetalnanoparticlesexhibitimprovedabsorptioncharacteristicscomparedtothenon-coatedgraphene,indicatingtheirpotentialasapromisingabsorbingmaterial. 1.Introduction Electromagneticwaveabsorptionmaterialsplayacrucialroleinvariousapplications,suchasradarstealthtechnology,electromagneticinterference(EMI)suppression,andenergyharvesting.Graphene,withitsuniqueelectrical,mechanical,andopticalproperties,hasemergedasapromisingcandidateforelectromagneticwaveabsorptionduetoitsultra-thinstructureandlargesurfacearea.However,oxidizedgraphenepossessesreducedconductivityandabsorptioncapacity.Therefore,modificationsareneededtoenhanceitsabsorptionproperties. 2.BoronandNitrogenCo-DopingofCarbonNanotubes Boronandnitrogenco-dopingofcarbonnanotubeshasbeenproveneffectiveinenhancingtheirelectricalandmechanicalproperties.Inthisstudy,BNCNTsweresynthesizedviaachemicalvapordeposition(CVD)method.Boronandnitrogendopantswereintroducedduringthesynthesisprocess,leadingtotheformationofhigh-qualityBNCNTs.Thedopinglevelwasoptimizedtoensureanidealbalancebetweenconductivityandabsorption. 3.CoatingofMetalNanoparticles TofurtherenhancetheabsorptionpropertiesofBNCNTs,metalnanoparticles(MNP)werecoatedontheirsurface.Thechoiceofmetalnanoparticlesdependsonseveralfactors,includingtheirmagneticandelectricalproperties.Commonmetalnanoparticlesusedinthisstudyincludeiron,nickel,and