NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.19 [2012] >
IJEMS Vol.19(4) [August 2012] >

Title: Ionic conductivity of lithium perchlorate salt in polymeric electrolyte solutions and MMT nano-sheets dispersed colloids
Authors: Choudhary, Shobhna
Sengwa, R J
Keywords: Polymeric electrolyte
Dielectric relaxation
Ionic conduction
Montmorillonite clay
Issue Date: Aug-2012
Publisher: NISCAIR-CSIR, India
Abstract: The relative complex dielectric function and ionic conductivity of polymeric electrolyte solutions in acetonitrile comprises of poly(ethylene oxide) (PEO), poly(methyl methacrylate) (PMMA), PEO-PMMA blend and lithium perchlorate with 8:1 ratio of polymer monomer units to the lithium cations are investigated over the frequency range 20 Hz to 1 MHz, and temperatures 15, 30 and 45oC. The dc ionic conductivity of PEO containing electrolyte solution (8.56 mS cm–1) is found higher as compared to that of the PMMA (4.85 mS cm–1) and PEO–PMMA blend (7.9 mS cm–1) at 15oC. The temperature dependent ionic conductivity, electrode polarization relaxation time and viscosity of these electrolyte solutions obey the Arrhenius behaviour, whereas the product of ionic conductivity and viscosity is governed by the Stokes-Einstein model. These parameters of PEO-PMMA blend electrolyte colloids have an initial decrease with loading of 1 wt% montmorillonite (MMT) clay as nanofiller and increase with further loading of MMT upto 10 wt%. The formation of cross-linked complexes and their effect on ions conduction mechanism in the electrolytes are discussed.
Page(s): 245-252
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.19(4) [August 2012]

Files in This Item:

File Description SizeFormat
IJEMS 19(4) 245-252.pdf262.87 kBAdobe PDFView/Open
 Current Page Visits: 121 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 172033 since 01-Sep-2015  Last updated on 30-Jun-2016Webmaster: