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Performance of cubic-(La,Sr)TiO3+δ as SOFC anodes

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Author(s)

John Thomas Sirr Irvine, J Canales-Vázquez, JC Ruiz-Morales, B Ballesteros

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Abstract

The performance and potential application of the cubic members of the La(4)Sr(n-4)TinO(3n+2) series of compounds, i.e. n >= 42, prepared by solid state reaction are discussed. Although these phases can be indexed as cubic perovskites by X-ray diffraction (XRD), there exists some oxygen beyond the ABO(3) stoichiometry accommodated in linear defects reminiscent to the oxygen rich layers in La2Ti2O7. In the present work, we report preliminary fuel cell tests of the n=12,14 and 16 of the La4Srn-4TinO3n+2 series, which reveal moderate responses under hydrogen, but also some promising results implying activation favouring methane oxidation.

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Details

Original languageEnglish
Pages (from-to)304-310
Number of pages7
JournalBoletín de la Sociedad Española de Cerámica y Vidrio
Volume46
Issue number6
Publication statusPublished - Nov 2007

    Research areas

  • solid oxide fuel cell, anodes, titanates, composites, current collector, OXIDE FUEL-CELLS, EXTENDED DEFECTS, LA0.75SR0.25CR0.5MN0.5O3-DELTA, PEROVSKITES, OXIDATION

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