Kumar, M. and Arulraj, I. and Pattabiraman, R. (2004) Lao.ftSSr,USCoO.4 (LSC 6535) as a Cathode Material -A Study on Chemical Reactivity of LSC with Y ZZrZ0 7 Pyrochlore Based Electrolyte for ITSOFC. Ionics, 10 (5). pp. 429-435. ISSN 0947-7047

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Abstract

A reduction in the operating temperature in SOFC can decrease materials dcgradation for long term operation. The efficiency of energy conversion and durability of performance mainly depend on the electro catalytic activity of the cathode and Its thermo-chemical compatibility with the oxide ion conducting solid e1ectrolyte. In this work, L )I"Sr" "COOl ,\ (L C (,535). a mixed conducting stable perovskite oxide prepared by glycine nitrate route is systematically characterized. Circular pellets were fabricated and subjected to sintering at different temperature ranging from lO73-1773 K, the sintering behaviour of LSC and LSC-YZ composite were investigated to obtain information on the densification. shrinkage in volume after heat treatment. The thermo-chemical compatibility of this cathode material with YZ is also bhrought out. Complex impedance spectroscopy was used for determining the conductivity and electrical behaviour. The component diffusion coefficient and mobility of ions were calculated from conductivity values. A brief discussion is made on its suitability for application as electro catalytic materials under ITSOFC operating conditions.

Item Type:	Article
Subjects:	Fuel Cells
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Apr 2012 09:33
Last Modified:	06 Apr 2012 09:33
URI:	http://cecri.csircentral.net/id/eprint/942

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