美国MER(MatericalsandElectrochemicalResearchCorporation)是保持全球**地位的特殊材料（exoticmaterial）的生产商。MER的产品包括：－Fullerenes富勒烯－Nanotubes碳纳米管－AluminumGraphite铝石墨2．NanotubesMER碳纳米管MERoffersvarioustypesofNanotubesproducedbybotharcandcatalyticCVDprocesses;-MWNT,asproducedcathodedeposit-MWNT,powderedcathodedepositcorematerial,<53micronparticlesize;-CatalyticMWNT,-AlignedCatalyticMWNTFilms;-As-ProducedSWNT;-As-ProducedDouble-WallCarbonNanotubes.品名Item:MWNT,as-producedcathodedeposit货号Catalog#MRMW包装规格1g；20g；150gDescription:Arc-producedcathodedepositwithapproximately1cmdiameterandmaximumofabout15cmlength.Thecathodedeposithasahard,grayfusedcarbonshellthatismadeupofgraphiticanddiamond-likecarbon.Thecoreisablackfibrousmaterialwith30-40wt%multi-wallcarbonnanotubecontent.Thecoreisabout25wt%ofthecathodedeposit.Theproductisover99%carbonandisproducedwithoutcatalysts.Nanotubeshave8-30graphenelayers,are6-20nmindiameterand1-5micronsinlength.品名Item:MWNT,powderedcathodedepositcorematerial,<53micronparticlesize货号Catalog#MRGC包装规格1g；20g；150gDescription:Arc-producedMWNTwith30-40wt%nanotubecontent.Theproductisremovedfromthecathodedepositandgroundandsievedto-270meshsize(<53um).Impuritiesaremulti-layerpolygonalstructures("Buckyonions")andgraphiticparticles.Productisover99%carbonandisproducedwithoutcatalysts.Nanotubeshave8-30graphene(graphite)layers,are6-20nmindiameterand1-5micronsinlength.Powderdensityisaround0.7g/cc.品名Item:CatalyticMWNT货号Catalog#MRCSD包装规格15g；25g；150g；500gDescription:Multi-wallcarbonnanotubesproducedbychemicalvapordeposition(CVD).CatalyticCVDMWNTwith140+/-30nmdiameterand7+/-2micronlength,withpurityof>90%(Catalog#MRCSD):品名Item:CatalyticMWNT货号Catalog#MRCMW包装规格15g；25g；150gDescription:CatalyticCVDMWNTwith35+/-10nmdiameterwithapproximately30micronlength,withpurityof>90%MWNT,withlessthan0.1%metal(Fe)content.Otherdiametersfrom35to90nmareavailableonrequest.品名Item:AlignedCatalyticMWNTFilms货号Catalog#MRCMWFILM包装规格9x9cm.Description:AlignedMWNTgrownonsilicasubstrate.Nanotubesare30-40nmdiameterwith60-80micronfilmthickness(nanotubelength).Platesizeupto9x9cm.品名Item:As-ProducedSWNT货号Catalog#MRSW包装规格15g；25g；150gDescription:ArcproducedSWNTwith12+wt%nanotubecontent.Impuritiesincludeca.25wt%metalcatalystparticles,ca.10wt%fullerenes(C60,C70,etc)andca.10wt%MWNTandothergraphiticstructuresTheremainderisamorphouscarbon.Nanotubesare1.2-1.4nmdiameter,10-50micronlengthinbundlesofupto20nanotubes.Powderdensityisaround0.025g/cc.品名Item:As-ProducedDouble-WallCarbonNanotubes货号Catalog#MRDW包装规格1g；10gDescription:Blackpowderproducedinthearc,withapproximately15wt%DWNT,15wt%amorphous,5%graphiticcarbonparticles,65wt%metalparticles(Co+Ni+Fe).Nanotubesare3-5mndiameterand5-15micronslong.