Table of Contents
ISRN Materials Science
Volume 2012 (2012), Article ID 795613, 7 pages
http://dx.doi.org/10.5402/2012/795613
Research Article

Electrical and Magnetic Properties of Polymer Electrolyte (PVA:LiOH) Containing In Situ Dispersed Fe3O4 Nanoparticles

1Department of Physics, Bandung Institute of Technology (ITB), Bandung 40132, Indonesia
2Department of Petroleum Engineering, Bandung Institute of Technology (ITB), Bandung 40132, Indonesia

Received 24 October 2011; Accepted 14 November 2011

Academic Editors: N. Guarrotxena and R. A. Varin

Copyright © 2012 M. P. Aji 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

Nanocomposite magnetic polymer electrolytes based on poly(vinyl alcohol) (PVA) complexed with lithium hydroxide (LiOH) and containing magnetite (Fe3O4) nanoparticles were prepared using an in situ method, in which the nanoparticles were grown in the host polymer electrolyte. Ion carriers were formed during nanoparticle growth from the previously added LiOH precursor. If a high concentration of LiOH was added, the remaining unreacted LiOH was distributed in the form of an amorphous complex around the Fe3O4 nanoparticles, thus preventing agglomeration of the nanoparticles by the host polymer. By addition of Fe3O4 the composite polymer electrolytes improved the ionic conductivity, resulting in a maximum conductivity of 1.81×103 S·cm−1. The magnetic properties of the polymer electrolyte were investigated through magnetic susceptibility studies, and the material was predominantly ferromagnetic.