Multi-walledcarbonnanotubes(MWCNTs)andgraphenenanoplatelets(GNPs)havebeenfunctionalized by dielectricbarrierdischarge(DBD)inair.TheextentoffunctionalizationofMWCNTsandGNPsreaches a maximumatthedelivereddischargeenergyof720and240Jmg1, respectively.Furtherexposureto plasma leadstoreductionoffunctionalgroupsfromthesurfaceofthetreatednanomaterials.Ithasalso been demonstratedthatDBDplasmadoesnotproducedramaticstructuralchangesinMWCNTs,while flakes ofthetreatedGNPsbecomethinnerandsmallerinthelateralsize.Conductivethin films, obtained by dropcastingasolutionofthetreatednanomaterialsin N-methyl-1-pyrrolidoneonpoly(methyl methacrylate)substrate,showsignificantly lowersheetresistance.
Effects of dielectric barrier discharge in air on morphological and electrical properties of graphene nanoplatelets and multi-walled carbon nanotubes
VALENTINI, LUCA;KENNY, Jose Maria;
2014
Abstract
Multi-walledcarbonnanotubes(MWCNTs)andgraphenenanoplatelets(GNPs)havebeenfunctionalized by dielectricbarrierdischarge(DBD)inair.TheextentoffunctionalizationofMWCNTsandGNPsreaches a maximumatthedelivereddischargeenergyof720and240Jmg1, respectively.Furtherexposureto plasma leadstoreductionoffunctionalgroupsfromthesurfaceofthetreatednanomaterials.Ithasalso been demonstratedthatDBDplasmadoesnotproducedramaticstructuralchangesinMWCNTs,while flakes ofthetreatedGNPsbecomethinnerandsmallerinthelateralsize.Conductivethin films, obtained by dropcastingasolutionofthetreatednanomaterialsin N-methyl-1-pyrrolidoneonpoly(methyl methacrylate)substrate,showsignificantly lowersheetresistance.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
