Effect of Polyaniline Mass Composition on Electrochemical of Active Carbon/Polyaniline as Supercapacitor Electrode

Abstract

Supercapacitor electrodes have been developed using natural materials from coconut shells (Cocos Nucifera) and polyaniline conductive polymers. This electrode fabrication uses the dry mixing method, with the addition of 10-20 wt% polyaniline to activated carbon. Electrochemical characterization of supercapacitor electrodes is examined using cyclic voltammetry at a scan rate of 100 mV/s. This result of characterization showed that the addition of mass of polyaniline affects the specific capacitance value of the supercapacitor electrode. Active carbon electrode/18 wt% polyaniline has a maximum specific capacitance value of 4.1 F/g. Furthermore, the activated carbon electrode/18wt% polyaniline was tested for electrochemical impedance spectroscopy (EIS). The addition of wt% polyaniline has an impact on the value of the electrical conductivity of the supercapacitor electrode when compared to the activated carbon electrode alone. The electrical conductivity of activated carbon electrodes/18 wt% polyaniline is 4.25 × 10−2 S/cm, while the electrical conductivity of activated carbon electrodes is 1.04 × 10−2 S/cm.