Chand, Navin and Rai, NEELESH and AGRAWAL, S L and Patel, S. K. (2011) Morphology, thermal, electrical and electrochemical stability of nano aluminium-oxide-filled polyvinyl alcohol composite gel electrolyte. Bulletin of Materials Science, 34. ISSN 0250-4707

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Abstract

Abstract. In the present work, an attempt has been made to develop nano aluminium oxide (Al2O3)-filled polyvinyl alcohol (PVA) composite gel electrolytes. Surface morphological studies, thermal behaviour, electro- chemical stability and electrical characterization of these composite gel electrolytes have been performed. An increase in the concentration of Al2O3 in composite gel electrolytes increases the amorphous characteristics of pure PVA. Bulk conductivity of composite gel electrolytes increases by an order of magnitude on addition of a nano filler. Maximum conductivity of 5 81 × 10–2 S/cm is observed for 6 wt% Al2O3-filled polymer gel compo- site electrolytes. Temperature dependence of electrical conductivity shows a combination of Arrhenius and Vogel–Tamman–Fulcher (VTF) nature. Maximum current stability during oxidation and reduction cycle is noticed for 6 wt% Al2O3-filled PVA composite electrolyte, viz. ±1 65 V.

Item Type:	Article
Subjects:	Lightweight Materials > Polymeric Materials
Divisions:	UNSPECIFIED
Depositing User:	Mr. B.K. Prasad
Date Deposited:	05 Nov 2013 08:19
Last Modified:	05 Nov 2013 08:19
URI:	http://ampri.csircentral.net/id/eprint/751

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