Hierarchical structure of graphene oxide/polyaniline composite flexible supercapacitor

Supercapacitors are popular due to their higher power density than that of batteries, and widely used in electronics. It bridges the gap between electrolytic capacitors rechargeable batteries. Electrochemical pseudocapacitors use metal oxides or conducting polymers. The graphene oxide/polyaniline (GO/PANI) composite, as a supercapacitor electrode material was prepared increase energy storage efficiency supercapacitor. oxide by modified Hummers method. GO/PANI composite In-situ polymerization aniline presence Graphene oxide. performance is evaluated using aqueous electrolyte at various current densities scan rate. electrochemical property impedance composites characterized CV, GCD EIS. From analysis, GO exhibited highest specific capacitance 255 F g−1 10 A g−1. Similarly, showed 327 Compared GO, an excellent Fg−1 6 M KOH electrolyte. Rs Rct were calculated 23 Ω 28 respectively. synergistic effects PANI, high attributed. Thus, results show introduction enhanced conductivity stability, then improved supercapacitive behaviour GO/PANI. These fascinating characteristics make promising candidate supercapacitors.