Electrochemical Capacitive Performance of ZnCl2 Activated Carbon Derived from Bamboo Bagasse in Aqueous and Organic Electrolyte

The article aims to explore the supercapacitor performance with the zinc catalysed activated carbon from biomass (bamboo bagasse) as the electrode material. The zinc-catalysed activated carbon is prepared by a novel combined technique of hydrothermal followed by chemical activation process. The prepared carbon was subjected to electrochemical characterization like cyclic voltammetry, galvanostatic charge-discharge, electrochemical impedance spectroscopy and cycling studies. The carbon activated in the presence of zinc chloride has the highest capacitance of 180 Fg(-1) in aqueous medium and 153 Fg(-1) in the non-aqueous medium.