Conductivity studies on plasticised PEO/Chitosan proton conducting polymer electrolyte

Majid, S.R. and Arof, Abdul Kariem and Kadir, M.F.Z.A. and Teo, L.P. (2009) Conductivity studies on plasticised PEO/Chitosan proton conducting polymer electrolyte. Materials Research Innovations, 13 (3). pp. 259-262. ISSN 1432-8917

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Official URL: https://doi.org/10.1179/143307509X440460

Abstract

The effect of ethylene sulphite (ES) content on the conductivity, morphology and nature of polymer electrolytes based on polyethylene oxide (PEO) and chitosan blend doped with ammonium nitrate (NH(4)NO(3)) has been analysed in this study. The films produced by the solution cast technique were kept in a desiccator filled with silica gel before characterisation. The sample (23.8 wt-% PEO+35.7 wt-% chitosan) 239.7 wt-% NH(4)NO(3)-0.8 wt-% ES exhibited the highest room temperature conductivity of the order 10(-4) s cm(-1). The conductivity-temperature relationship was found to obey Arrhenius rule. The activation energy for the highest conducting sample is 0.02 eV. From Jonscher's universal power law, the trend of exponent s v. temperature showed that the conduction mechanism of the ions in the highest conducting sample can be explained by the quantum mechanical tunnelling (QMT) model. Scanning electron microscopy (SEM) revealed that surfaces of samples containing ES are porous.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Peo; Chitosan; Ammonium nitrate; Ethylene sulphite; Qmt; Discharge characteristics; Chitosan/peo blends; Ionic-conductivity; Ac conductivity; Lithium battery; Salt; Pvc/pmma; Systems; Litfsi
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 14 Aug 2013 00:57
Last Modified: 04 Oct 2018 07:39
URI: http://eprints.um.edu.my/id/eprint/7644

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