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A novel perovskite-based proton conductor for solid oxide fuel cells

DSpace at IIT Bombay

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Title A novel perovskite-based proton conductor for solid oxide fuel cells
 
Creator HARIHARAN, R
PRASANNA, TRS
GOPALAN, P
 
Subject Proton conduction
Electrical properties
Solid electrolyte
Perovskite oxide
Fuel cell materials
ELECTROLYTE
TRANSPORT
CA
 
Description A perovskite-based electrolyte, Ca-substituted YAlO3, has been synthesized by the citrate gel process. The conductivity of Y0.9Ca0.1AlO3-delta has been studied by AC impedance spectroscopy in controlled atmospheres in the temperature range 300-800 degrees C. The material has been found to be a mixed conductor with dominant p-type electronic conduction at elevated temperatures and a combined protonic conduction below 600 degrees C in wet conditions. The H/D isotope effect on conductivity confirms the presence of protonic conductivity between 400 and 600 degrees C. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2014-10-16T13:02:43Z
2014-10-16T13:02:43Z
2012
 
Type Article
 
Identifier SCRIPTA MATERIALIA, 66(9)658-661
http://dx.doi.org/10.1016/j.scriptamat.2012.01.036
http://dspace.library.iitb.ac.in/jspui/handle/100/15615
 
Language en