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Characterization of Supercapacitor Fabricated from Beli Fruit (Aegle Marmelos) Shell Activated Carbon for the First Time

Journal of Scientific and Technical Research

Volume 7 Issue 1

Published: 2017
Author(s) Name: G. G. Chathuranga, N. W . P. S. Perera, U. S. Liyanaarchchi, C. A. N. Fernando | Author(s) Affiliation: Dept of Electronics, Faculty of Applied Sc, Wayamba Univ. of Sri Lanka, Kuliyapitiya, Sri Lanka
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Abstract

We developed activated carbon from the Aegle marmelos fruit shell also known as Beli. Firstly, its carbonaceous process is done by a typical process. H3PO4 treatment was used to activate the carbonaceous material. Activated material is characterized by using Scanning Electron Microscope and Brunauer-Emmett-Teller (BET) specific surface areas. Calculated BET surface area of the fabricated supercapacitor is 517 m2/g. Electrochemical characterization was carried out through cyclic voltammetry, charge/discharge and electrochemical impedance spectro-scopy. Highest specific capacitance of 59 F/g and energy density of 8.19 kW/h for highest specific capacitance was obtained from the charge discharge curve. Obtained equivalent serial resistance is 0.414 O from equivalent circuit.

Keywords: Activated carbon, Beli fruit shell, Specific capacitance, Supercapacitors.

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