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Superior Supercapacitors based on Biowaste Materials Bhat, V; S, Supriya; Hegde, G
Journal of Engineering and Scientific Research Vol 1, No 1: (June, 2019)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v1i1.6

Abstract

Carbon nano spheres derived from Allium cepa were synthesized at differenttemperatures in a one-step pyrolysis process for supercapacitor electrodes. Obtainedcarbon nano spheres were analyzed using SEM, FTIR, BET and XRD. The nanomaterials were fabricated into conducting electrodes for cyclic voltammetry, constantcurrent charge-discharge and electrochemical impedance spectroscopy studies. All thestudies were done in 3.0 M KOH electrolyte. Specific capacitance from chargedischarge experiments were found to be 132.03 F/g and 149.49 F/g for nano materialssynthesized at 500ºC and 600ºC respectively. Obtained values suggest a way forward inproducing a green electrode for commercial applications.Keywords: Carbon nano spheres, supercapacitor electrodes, bio material