Ahmad, Shahzada and Agnihotry, S. A. (2007) Effect of nano gamma-Al2O3 addition on ion dynamics in polymer electrolytes. Current Applied Physics , 9 (1). pp. 108-114. ISSN 1567-1739

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Polymer electrolytes, which hold the key of successful operation of all solid state ionic devices, have been investigated. An amorphous polymer was used to facsimile fast ion transport in the gel polymer electrolytes (GPE) and room temperature conductivity >10−3 S/cm can be attained. Further, these electrolytes were transformed into composites by dispersing inorganic particles of γ-Al2O3 (11 nm in size) in varying wt.%. An enhancement in the conductivity for an optimum concentration using LiClO4 as a salt can be obtained and is described in terms of free charge carrier concentration, while the other family of Lithium salts viz. LiTf, LiIm, LiBETI decreases the conductivity marginally. FTIR spectroscopy supports the observed decrease in terms of more association between fillers and salts. It has been realized that the mechanical integrity of these composites increases manifold, without affecting the conductivity, significantly.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords: Nanocomposite; Polymer electrolytes; γ-Al2O3; PMMA
Subjects: Materials Science
Depositing User: Ms Neetu Chandra
Date Deposited: 23 Aug 2012 09:15
Last Modified: 23 Aug 2012 09:15
URI: http://npl.csircentral.net/id/eprint/467

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