2017 |
Volume 7 |
Issue 1
Characterization of Supercapacitor Fabricated from Beli Fruit (Aegle Marmelos) Shell Activated Carbon for the First Time
1.
G. G. Chathuranga
– Dept Of Electronics, Faculty Of Applied Sc, Wayamba Univ. Of Sri Lanka, Kuliyapitiya, Sri Lanka
2.
N. W . P. S. Perera
– Dept Of Electronics, Faculty Of Applied Sc, Wayamba Univ. Of Sri Lanka, Kuliyapitiya, Sri Lanka
3.
U. S. Liyanaarchchi
– Dept Of Electronics, Faculty Of Applied Sc, Wayamba Univ. Of Sri Lanka, Kuliyapitiya, Sri Lanka
4.
C. A. N. Fernando
– Dept Of Electronics, Faculty Of Applied Sc, Wayamba Univ. Of Sri Lanka, Kuliyapitiya, Sri Lanka
Received
13-Jul-2017
|
Accepted
-
|
Published
13-Jul-2017
|
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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