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Cyclic voltammetry analysis of carbon based electrochemical capacitor in aqueous electrolytes

raja seman, raja noor amalina and Munawar, Rose Farahiyan and Abd Razak, Jeefferie and Zulkapli, Nor Najihah and Bistamam, Mohd Shahril Amin and Talib, Elyas and Tunku Kudin, Tunku Ishak and Abdul Manaf, Nor Syafira and Mohd Abid, Mohd Asyadi Azam (2015) Cyclic voltammetry analysis of carbon based electrochemical capacitor in aqueous electrolytes. Applied Mechanics and Materials, 761. pp. 452-456. ISSN 1660-9336 (In Press)

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Abstract

Abstract. In this study, a mixture of activated carbon (AC) and graphene (G) was coated onto the stainless steel (SS) mesh to produce an electrode for the electrochemical capacitor (EC). Different materials, such as carbon nanotube (CNT) mixed with G, were also used in this experiment to compare the electrochemical properties of both electrodes. The electrochemical properties of the electrode were determined by using cyclic voltammetry (CV). The CV curves of the AC/G electrodes showed good capacitive behaviour, and the highest capacitance values obtained for AC/G and CNT/G electrodes in 1M H2SO4 at 1 mVs-1 were 13 Fg-1 and 4.34 Fg-1, respectively. Meanwhile, the highest capacitance values obtained in 6M KOH at 1 mVs-1 were 14 Fg-1 and 12.07 Fg-1 for AC/G and CNT/G electrodes, respectively.

Item Type: Article
Uncontrolled Keywords: activated carbon, graphene, carbon nanotube, electrochemical capacitor, electrochemical performance
Subjects: T Technology > TS Manufactures
Divisions: Faculty of Manufacturing Engineering > Department of Engineering Materials
Depositing User: En. Jeefferie Abd Razak
Date Deposited: 12 May 2015 08:40
Last Modified: 28 May 2015 04:38
URI: http://eprints.utem.edu.my/id/eprint/14477

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