LAUSR

Abstract Smart wearable electronic gadgets are getting popularity among the masses and their high demand leading the quest for high power/energy density flexible energy storage devices like supercapacitors and batteries. To address the need for high energy and high power in supercapacitors, we have prepared heat-assisted Polyaniline (PANI)/reduced crumbled Graphene Oxide (rcGO) nanostructures as a high quality flexible electrode materials through in-situ polymerization of aniline in the presence of crumbled graphene oxide (cGO). Spectroscopy results revealed the successful reduction of cGO by charge transfer from PANI chains during the heating process. The resulting PANI/rcGO has been used as electrode material and cast into flexible electrode to fabricate symmetrical supercapacitor device. The flexible PANI/rcGO electrode has devlivered a specific capacitance of 299 Fg-1 at 0.5 Ag-1 current density, whereas pure PANI given 248 Fg-1 at the same rate. Further, PANI/rcGO nanocomposite exhibited long cyclic stability even after 2000 charge-discharge cycles. The excellent electrochemical performance of heat-assisted PANI/rcGO nanocomposite has been realized due to the lamination of rcGO by PANI chains and form high interfacial contact between rcGO and polymer chains.