Porous activated carbon materials from Triphala seed stones for high-performance supercapacitor applications

Porous activated carbon materials derived from biomass could be the suitable for high-rate performance electrochemical supercapacitors as it exhibits high surface area due to well-defined pore structure. Here, we report novel porous Triphala seed stones by chemical activation with zinc chloride at different carbonization temperature (400-700 °C) under nitrogen gas atmosphere. The was characterized Fourier transform-infrared (FTIR) spectroscopy, Raman scattering and scanning electron microscopy (SEM). Nitrogen adsorption-desorption measurements used study properties (effective areas, volumes size distributions). were performed in an aqueous 1 M sulphuric acid (H2SO4) solution a three-electrode cell set up. stones-derived micro- mesopores exhibit specific ranges 878.7 1233.3 m2 g-1 total volume 0.439 0.626 cm3 g-1. capacitance obtained measurement experiment 208.7 F A These results indicate that prepared nanoporous material would have significant possibility supercapacitor electrode high-energy-storage applications.