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- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received April 19, 2023
Revised May 30, 2023
Accepted June 29, 2023
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Synthesis of graphitic carbon from Pisum sativum for supercapacitor applications
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Abstract
This work reports preparation of Pisum sativum (peas) derived graphitic carbon (PSC) and its activation
with potassium hydroxide (KOH), referred to as Pisum sativum derived activated graphitic carbon (PSAC). The structure, morphology and surface area of the materials were characterized by using X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), Raman spectroscopy and Brunauer
Emmet Teller (BET). The electrochemical performance of the material was investigated by using cyclic voltammetry
(CV), galvanostatic charge-discharge (GCD), cyclic stability and electrochemical impedance spectroscopy (EIS). The
graphitic carbon obtained showed specific surface area of 240 m2
g1
with pore size of 3.32 nm. The electrochemical
testing of activated carbon delivered specific capacitance of 517 F g1
at 10 mV s1
with 86% of capacitance retention
after 2,000 cycles at 10 mA cm2
. It showed high specific energy of 35 Wh kg1
at specific power 645 W kg1
.
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