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Investigation of ionic transport properties in the new mixed system BiI3-Ag2MoO4

S. AUSTIN SUTHANTHIRARAJ1,* , V. S. SHANKARAN1

Affiliation

  1. Department of Energy, University of Madras, Maraimalai Campus,Chennai 600 025, India

Abstract

The phenomenon of ionic transport in the case of the new mixed system (BiI3)x – (Ag2MoO4)1-x (0.1≤ x ≤ 0.9), prepared by rapid melt quenching method has been experimentally investigated in order to establish it as a silver ion-based fast ion conductor and reported in the present work. The relevant structural and thermal properties were evaluated by means of Xray diffraction (XRD) analysis, Fourier transform infrared (FTIR) and Differential scanning calorimetry (DSC) techniques. The electrical transport studies involving ionic transport number and temperature - dependent electrical conductivity measurements have been carried out in order to identify the various phases responsible for the conduction process. The electrical conductivity attains a maximum value of 1.9x10-3 Scm-1 for the typical composition (BiI3)0.2–(Ag2MoO4)0.8 with an activation energy 0.26 eV for silver ionic transport at room temperature (298 K). The novel data obtained in terms of electrical transport studies have been discussed in the light of the observed structural characteristics..

Keywords

Fast ion conductor, XRD, DSC, Ionic transport, Transport studies.

Submitted at: Sept. 4, 2012
Accepted at: Sept. 18, 2013

Citation

S. AUSTIN SUTHANTHIRARAJ, V. S. SHANKARAN, Investigation of ionic transport properties in the new mixed system BiI3-Ag2MoO4, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 9-10, pp. 1003-1009 (2013)