Ternary Composite Electrode Carbon Fiber/mno2 /polyaniline for Supercapacitor Applications Based on Naturally Available Broom and Bamboo Sticks

Abstract In the present study, energy harvesting is done from carbon fibers ( CFs ) synthesized using a naturally available broomstick and bamboo stick. The broom and bamboo sticks have been reprocessed in an alkaline solution using a controlled hydrothermal method. The carbonization of the cellulose fibers resulted in the production of CFs. The synthesized CFs have been used to prepare a ternary composite electrode with MnO 2 and polyaniline ( PA ). Thus, prepared ternary composite electrodes were used for the supercapacitor application. The Supercapacitor with a maximum specific capacitance ( SC ) of 373 F/g (from Broomstick) and 132 F/g (from the bamboo stick) was fabricated, which showed good cycling stability. The structural properties of the electrode materials were confirmed using X-ray diffraction, scanning electron microscopy, EDAX, BET adsorption-desorption experiment, and Fourier transform infrared spectroscopy techniques. The fabricated symmetrical electrode's supercapacitor properties were analyzed using cyclic voltammetry ( CV ), electrochemical impedance, and galvanostatic charge-discharge ( GCD ) cycling technique.