In situ synthesis of graphene/single-walled carbon nanotube hybrid material by arc-discharge and its application in supercapacitors

Abstract

Aiming to the synthesis of graphene/single-walled carbon nanotube (SWNT) hybrid materials, an arcing-discharge method for an efficient and large-scale production has been developed. Furthermore, the performance of supercapacitors using this graphene/SWNT hybrid has been studied, which gives a remarkable result with the specific capacitance of ∼350F/g at 2.7V and an energy density of ∼68Wh/kg in the standard industry organic electrolyte system.