Record Details

Effect of electrode polarisation on the determination of electronic conduction properties of an oxide ion conductor

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Effect of electrode polarisation on the determination of electronic conduction properties of an oxide ion conductor
 
Creator SINHA, A
NAFE, H
SHARMA, BP
GOPALAN, P
 
Subject galvanic cell
oxide ion conductor
gadolinium aluminate
electrode polarisation
non-linear optimization
oxygen permeation measurement
 
Description The p-type electronic conduction parameter p(circle plus) of Gd(0) (85)Ca(0) (15)AlO(3-delta) a predominantly oxide ion conductor has been determined as a function of temperature by simultaneously taking into account the results of oxygen permeation and cell potential difference measurements under various oxygen partial pressures in the surroundings of the ceramic electrolyte Using a non-linear optimization procedure applied to the experimental data the polarisation resistances at anode and cathode can be quantified separately which allows to obtain p(circle plus) values that are corrected for the electrode polarisation At lower measuring temperatures the value of p(circle plus) was found to be to be time-dependent p(circle plus) increased by an order of magnitude when the specimen is kept at 650 degrees C over a period of 1500 h (C) 2010 Elsevier Ltd
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-24T04:01:15Z
2011-12-26T12:56:43Z
2011-12-27T05:45:53Z
2011-08-24T04:01:15Z
2011-12-26T12:56:43Z
2011-12-27T05:45:53Z
2010
 
Type Article
 
Identifier ELECTROCHIMICA ACTA, 55(28), 8766-8770
0013-4686
http://dx.doi.org/10.1016/j.electacta.2010.08.007
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10748
http://hdl.handle.net/10054/10748
 
Language en