Facile Preparation and Characterization of Boron Nitride-coated Multiwall Carbon Nanotubes，第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）-中国聚合物网,论文下载

Facile Preparation and Characterization of Boron Nitride-coated Multiwall Carbon Nanotubes

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mwcnts boron nitride surface modification preparation acterization

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105K

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分子表征

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第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）

简介：

Thediscoveryofcarbonnanotubes(CNTs)hasattractedhighinterestsbecauseoftheiruniquemechanical,thermalandelectronicproperties.However,theapplicationofCNTshasbeenlimitedtothefieldofelectronicpackagingandelectricalinsulatingduetotheirexcellentelectricalconductivity.SurfacemodificationofCNTsthusbecomesanimportantmethod,especially,usinginsulatinginorganiclayers.Boronnitride(BN)haslowdensity,highthermalconductivityandchemicalinertness.Inparticularly,boronnitridehasreceivedmuchattentionbecausetheyareinsulating,donotreactwithmoltenmetals,andhavehigheroxidationresistancethancarbon.Thus,combiningtheadvantagesofthetwomaterialswouldbeofgreatvalueforthedesignofnanoscaleelectronicdevicesandnanostructurescomposites.Inthepresentwork,wereportanovelcoatingmethodinvolvingareactionbetweenboricacidandureaonthesurfaceofcarbonnanotubes.TheaimofthisworkistostudytheformationofBNthinfilmsonthesurfaceofMWCNTsbythermaltreatment.Theprocessinvolvesheatingnanotubesinamixtureofboricacid(H3803)andurea,followedbyaheattreatmentat900一10000CunderN2atmosphere.Theproductswerecharacterizedbytransmissionelectronmicroscopy(TEM),X-raydiffraction(XRD)andX-rayphotoelectronspectroscopy(XPS)analyses.Theresultsrevealedthatboronnitridewassuccessfullycoatedonthesurfaceofcarbonnanotubeswithdisorderedwallstructure.Theureadecompositionrouteaffordsasimplemethodtocoatboronnitrideonone-dimensionalnanostructures.

作者：

W. Yan, Y. Zhang, S. W. Liu, Z. G. Chi, J. Xu

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2013-07-01 14:33:24

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