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On the Stability of Sr‐Doped La 2 CuO 4 Against Different Electrolytes for IT‐SOFCs
Author(s) -
RuizBustos R.,
CantosGómez A.,
Dos santosGarcía A. J.,
SánchezBautista C.,
van Duijn J.
Publication year - 2011
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201000060
Subject(s) - electrolyte , cathode , materials science , thermal stability , fabrication , fuel cells , cermet , chemical engineering , doping , composite material , electrode , chemistry , ceramic , optoelectronics , medicine , alternative medicine , pathology , engineering
The thermal stability of the cathode material against an electrolyte at the operating temperature plays an important role in the fuel cell's performance. As such, compatibility tests of the most common used electrolytes with La 2– x Sr x CuO 4 have been performed. The chemical reaction between these two materials in the temperature ranging from 800 to 1,000 °C was examined by X‐ray diffraction analyses. The results show that in all the cases there is reaction above 925 °C, making conventional cell fabrication non‐appropriate. However, we demonstrate that infiltration is a useful technique for obtaining cuprate cermets for use as cathode materials in IT‐SOFCs.