Some structural considerations on the perovskite-type A 1-ySryCo1-xFexO3-δ solid solution series

E. Magnone*, M. Miyayama, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Solid solution series of La1-ySryCo 1-xFexO3-δ were extensively studied in the past as cathode materials for solid oxide fuel cells. However, the crystal structure behavior of La1-ySryCo1-xFe xO3-δ solid solution series when La-ions are replaced with another rare-earth ion or metallic alkaline earth metal is at present not fully understood. Here we report X-ray powder diffraction measurements performed on samples of the Sm0.8Sr0.2Co 1-xFexO3-δ solid solution series. This study demonstrates that the average A-cation radius, as well as the Fe content (x), affects the structural modification of the A1-ySr yCo1-xFexO3+δ solid solution series significantly.

Original languageEnglish (US)
Pages (from-to)355-364
Number of pages10
JournalCrystal Research and Technology
Volume45
Issue number4
DOIs
StatePublished - Apr 1 2010

Keywords

  • Cathode
  • Solid oxide fuel cell
  • Vegard's law
  • X-ray diffraction

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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