tPolyaniline/reduced graphene oxide/Au nano particles (PANI/rGO/AuNPs) as a hybrid supercapacitorwere deposited on a glassy carbon electrode (GCE) by cyclic voltammetry (CV) method as ternarycomposites and their electrochemical performance was evaluated in acidic medium. Scanning electronmicrographs clearly revealed the formation of nanocomposites on the surface of the working electrode.Scanning electron micrographs (SEM) clearly revealed the formation of nanocomposites on the surfaceof working electrode. Different electrochemical methods including galvanostatic charge–discharge (CD)experiments, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were carriedout in order to investigate the applicability of the system as a supercapacitor. Based on the cyclic voltam-mogram results obtained, PANI/rGO/AuNPs gave higher specific capacitance, power and energy valuesthan PANI at a current density of 1 mA cm−2. Specific capacitance (SC) of PANI and PANI/rGO/AuNPs elec-trodes calculated using CV method are 190 and 303 F g−1, respectively. The present study introduces newnanocomposite materials for electrochemical redox capacitors with advantages including long life cycleand stability due to synergistic effects of each component
