Conducting polymer effects on hybrid S-rGO/CuO/polymer nanocomposites for SupercapBattery devices

Abstract

In this study, 3 different materials were combined to form hybrid nanocomposite for SupercapBattery applications. Sulfur (S) doped reduced graphene oxide (S-rGO), copper (II) oxide (CuO), and different conducting polymers such as polyaniline (PANI), poly(3,4-ethylenedioxythiophene) (PEDOT) and polypyrrole (PPy) were used as a one of the components of nanocomposites. Electrochemical performances were performed by cyclic voltammetry (CV), galvanostatic charge / discharge (GCD) and electrochemical impedance spectroscopy (EIS) measurements. EIS measurements were analyzed by Nyquist, Bode-magnitude, Bode-phase, and Admittance plots. Long-term stability tests were obtained by CV method using 1000 charge/discharge performances at a scan rate of 100 mV×s-1 . The highest specific capacitance was calculated as Csp= 171.63 F×g-1 at 2 mV×s-1 (electrode weight was obtained as 12,8 mg) for S-rGO/CuO/PEDOT nanocomposite.