Graphene-based composite supercapacitor electrodes with diethylene glycol as inter-layer spacer

Abstract

Diethylene-glycol/graphene nano-composites were produced by a simple mild solvothermal method, in which diethylene glycol was grafted onto the surfaces of reduced graphene oxides (RGO) as an inter-layer spacer to prevent the aggregation of graphene single sheets, and wet the RGO as well, resulting in good supercapacitor performance and durability.