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Title: Ion-transport studies on Ba-nano ferrite dispersed PVA : (NH4CH2COO)2 Polymer Electrolyte
Authors: Agrawal, S L
Shukla, P K
Tripathi, Deepshikha
Singh, Chandra Prakash
Issue Date: Jun-2014
Publisher: NISCAIR-CSIR, India
Abstract: An attempt has been made in the present work to develop a nano sized Ba-ferrite doped PVA based nano composite polymer gel electrolyte for electrochemical device applications. Nano sized Ba-ferrite particles prepared through chemical route were dispersed in matrix electrolyte of PVA: (NH4CH2COO)2 to obtain NCPGE films. XRD result on a synthesised filler particle depicts formation of nano ferrite with hexaferrite as the major phase. Further XRD studies on NCPGE show improvement in amorphous character with increasing concentration of nano fillers in composite electrolytes. OM and SEM examination of NCPEs shows heterogeneous distribution of fillers. Cyclic voltammetric measurement reveals optimum electrochemical window of ±1.8V with good recyclability. Ionic conductivity of electrolyte evaluated from impedance spectroscopy technique shows enhancement in electrical conductivity upon dispersal of nano fillers which increases with filler concentration and temperature. Jonscher power law seems to be obeyed during ac conductivity measurement of the films.
Page(s): 46-52
ISSN: 0975-2412 (Online); 0771-7706 (Print)
Appears in Collections:BVAAP Vol.22(1) [June 2014]

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