Electrical double layer capacitor with proton conducting kappa-carrageenan-chitosan electrolytes

Majid, Siti Rohana and Arof, Abdul Kariem and Shuhaimi, N.E.A. and Alias, N.A. (2008) Electrical double layer capacitor with proton conducting kappa-carrageenan-chitosan electrolytes. Functional Materials Letters, 1 (3). pp. 195-201. ISSN 1793-6047

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Official URL: https://doi.org/10.1142/S1793604708000423

Abstract

Charge-discharge characteristics of electrical double layer capacitors (EDLCs)using kappa-carrageenan-chitosan based electrolyte is the focus of the present work. Chitosan and kappa-carrageenan were blended to obtain films with high mechanical strength. The room temperature conductivity of 0.5 g chitosan + 0.5 g kappa-carrageenan (CCPA) film and 0.5 g chitosan + 0.5 g kappa-carrageenan + 0.1765 g ammonium nitrate(CCPAAN) film are (1.38 +/- 0.36) x 10(-6) S cm(-1) and (2.39 +/- 0.83) x 10(-4) S cm(-1), respectively. The conducting species is H(+) and conduction occurs via a Grotthuss mechanism. The resistance of the phenol resin based activated carbon electrode film is between 15 to 20 Omega. The capacitance of the EDLCs is stable over 20 cycles. The average discharge capacitance of the EDLC employing CCPAAN electrolyte and activated carbon electrodes is between 13 to 18.5 F g(-1).

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Chitosan; Kappa-carrageenan; Supercapacitors; Discharge capacitance; Polymer electrolyte; Electrochemical capacitors; Gel electrolytes; Composite; Battery; Carbon; Polypyrrole
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 05 Aug 2013 01:56
Last Modified: 27 Aug 2019 01:24
URI: http://eprints.um.edu.my/id/eprint/7632

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