Quick and surfactant-free dispersion of various carbon nanoparticles in aqueous solution as casting technique for devices

Tremendous applications of carbon-based nanomaterials need the individualization particles in liquid phase, preferably an aqueous solution. Currently, one main challenges is how to obtain highly monodispersed and high-quality colloidal solutions make it usable electronic devices without performing badly. In this study, carbon nanoparticles (i.e., fullerenes, nanotubes, graphene) were individualized stabilized well solution by using a novel cutting-edge dispersion technique sodium hypochlorite (NaClO) bromide (NaBr) assisted brief low-power sonication treatment. This new method improves properties, provides means which carboxylate groups are introduced surface that facilitates formation Na-carbon salts when exposed NaClO NaBr mixed-salt As metal-salt complex, then readily susceptible within polar medium. Vacuum-filtration prepared salted nanotube film, graphene C60 have high electrical conductivity, representative has value up 1.72 × 104 S/m, comparable dispersed other traditional dispersants. Because its nontoxicity facile water-based features, we expect casting would pave way into more device areas, etc.