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Advances in Materials Science and Engineering
Volume 2015 (2015), Article ID 145735, 10 pages
http://dx.doi.org/10.1155/2015/145735
Research Article

Conductivity and Dielectric Studies of Lithium Trifluoromethanesulfonate Doped Polyethylene Oxide-Graphene Oxide Blend Based Electrolytes

1Institute of Graduate Studies, University of Malaya, 50603 Kuala Lumpur, Malaysia
2Chemistry Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
3Centre for Foundation Studies in Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

Received 13 November 2014; Accepted 19 December 2014

Academic Editor: Kwangho Kim

Copyright © 2015 A. A. Azli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Series of polymer blend consisting of polyethylene oxide (PEO) and graphene oxide (GO) as co-host polymer were prepared using solution cast method. The most amorphous PEO-GO blend was obtained using 90 wt.% of PEO and 10 wt.% of GO as recorded by X-ray diffraction (XRD). Fourier transform infrared spectroscopy (FTIR) analysis proved the interaction between PEO, GO, lithium trifluoromethanesulfonate (LiCF3SO3), and ethylene sulfite (ES). Incorporation of 25 wt.% LiCF3SO3 into the PEO-GO blend increases the conductivity to  S cm−1. The conductivity starts to decrease when more than 25 wt.% salt is doped into the polymer blend. The addition of 1 wt.% ES into the polymer electrolyte has increased the conductivity to  S cm−1. Dielectric studies show that all the electrolytes obey non-Debye behavior.