Rapid Preparation and Characterization of Graphene/Carbon Nanotube Hybrid Materials

In this work,a stable,large area sandwich structure of material consisted of carboxylic multiwall carbon nanotubes（c-MWCNTs） and polymer-modified graphene（G） via a self-assembly process was prepared.Positively charged nanomaterial of polymer-modified graphene were prepared via in situ reduction of graphite oxide in the presence of poly（diallyldimethylammonium chloride）（PDDA）.Then c-MWCNTs were added into the water-soluble PDDA-modified graphene to form hybrid carbon material via sequential electrostatic self-assembly.Transmission electron microscope（TEM） and scanning electron microscopy（SEM） were used to characterize those hybrid materials.From the figures we can learn that this method has successfully led to the fabrication of a reasonably uniform film with well-interconnected carbon-based hybrid materials.