Ruddlesden-popper-type epitaxial film as oxygen electrode for solid-oxide fuel cells

Atsuo Yamada, Yoshitaka Suzuki, Kazuyuki Saka, Makiko Uehara, Daisuke Mori, Ryoji Kanno, Takanori Kiguchi, Fabrice Mauvy, Jean Claude Grenier

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

A method is proposed to demonstrate the use of Ruddlesden-Popper-Type epitaxial film as oxygen electrode for solid-oxide fuel cells (SOFCs) and to provide the detailed information of the oxygen reduction process. Pulsed laser deposition technology used to design the oxygen electrode. The formation of SOFC hetero-epitaxial system was observed during the reduction process. It was observed that an electrochemically active epitaxial system can be prepared with oxygen electrode and yttrium stabilized zirconia (YSZ) electrolyte substrate. Electrode film/YSZ substrate was used for their chemical stability, closer thermal expansion with the YSZ substrates, and high quality of YSZ crystals. The investigation of hetero-epitaxial SOFC system opened new directions for studying the reaction anisotropy and strain effect by the interaction of electrode/electrolyte interface.

Original languageEnglish
Pages (from-to)4124-4128
Number of pages5
JournalAdvanced Materials
Volume20
Issue number21
DOIs
Publication statusPublished - 2008 Nov 3
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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