Cone-Shaped Gd1-xSrxFe0.8Co0.2O3-δ Electrodes for SOFC Cathodes

Kent Kammer Hansen

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Abstract

Five Gd1-xSrxFe0.8Co0.2O3-δ perovskites were synthesized using the glycine-nitrate process. The compounds were evaluated as solid oxide fuel cell cathodes using cone-shaped electrodes and electrochemical impedance spectroscopy. It was shown that the electrochemical activity depended on the amount of strontium in the perovskite; the main difference seemed to be whether the perovskite is a single or a two-phase compound. However, high-strontium-substituted Fe-Co-based perovskites have slightly higher performances than the low-strontium-substituted Fe-Co-based perovskites, as determined by electrochemical impedance spectroscopy on cone-shaped electrodes.
Original languageEnglish
JournalInternational Journal of Electrochemical Science
Volume12
Issue number12
Pages (from-to)11540-11545
ISSN1452-3981
DOIs
Publication statusPublished - 2017

Keywords

  • Cathode
  • Cone-shaped electrodes
  • EIS
  • Perovskite
  • SOFC

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