Alternative perovskite materials as a cathode component for intermediate temperature single-chamber solid oxide fuel cell

Cyril Gaudillère, Louis Olivier, Philippe Vernoux, Chunming Zhang, Zongping Shao, David Farrusseng

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

This paper exploits the suitability of three perovskite materials Ba0.5Sr0.5Co0.8Fe0.2O3- δ (BSCF), GdBaCo2O5+δ (GBC) and Ba0.5Sr0.5Mn0.7Fe0.3O3- δ (BSMF) as SOFC cathodes in the single-chamber configuration operating at the intermediate temperature range. TG analysis showed high thermal stability depending on the crystalline phases of the materials. The catalytic activity of these three materials for hydrocarbon conversion was investigated under a realistic feed, i.e. with hydrocarbon, oxygen, water and carbon dioxide. Electrochemical impedance spectroscopy of the various cathodes tested in symmetric cell configuration revealed a B-site dependence of the electrode catalytic activity for oxygen reduction. High temperature (1000 °C) powder reactivity tests over a gadolinium doped-ceria (CGO) and perovskite cathode revealed excellent chemical compatibility of BSMF and CGO. Catalytic tests associated with thermal and structural characterization attest to the suitability of these materials in the single-chamber configuration.

Original languageEnglish
Pages (from-to)4758-4764
Number of pages7
JournalJournal of Power Sources
Volume195
Issue number15
DOIs
StatePublished - 1 Aug 2010

Keywords

  • Cathode
  • Hydrocarbon
  • Intermediate temperature
  • Perovskite materials
  • Single-chamber solid oxide fuel cell

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