Activated Carbon from Plant-Biomass Waste Materials as Electrodes for Supercapacitor Applications

Abstract

This work is aimed at studying activated carbons as supercapacitor electrode materials derived from plant biomass waste materials. The activated carbon raw materials are sourced from coconut shell, pine cone and rice husk plant biomass. The chemical activation route is employed with KOH as an activating agent. The carbonization temperature used is 800 o C and the carbonization time is varied from 1 h to 5 h. Activated carbon of high surface area and porosity are achieved and their electrodes show a good electrochemical performance presenting them as applicable for supercapacitor electrode materials.