Doped Perovskite Oxide, PrMnO3, as a New Cathode for Solid‐Oxide Fuel Cells that Decreases the Operating Temperature

Tatsumi Ishiham, Takanari Kudo, Hideaki Matsuda, Yusaku Takita

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Cathodic overpotentials of Ln0.6Sr0.4MnO3 (Ln is La, Pr, Nd, Sm, Gd, Yb, and Y) were studied for a new cathode for solid‐oxide fuel cells (SOFCs) with low overpotentials in a relatively‐low‐temperature region. Cathodic overpotentials strongly depended on the rare‐earth cations in the A sites of the perovskite oxide. In particular, overpotentials of a Sr‐doped PrMnO3 cathode maintained low values despite decreased operating temperature. Consequently, almost the same power density of a SOFC with Ln0.6Sr0.4MnO3 cathode was obtained at about 100 K lower operating temperature by using Sr‐doped PrMnO3 as the cathode.

Original languageEnglish
Pages (from-to)1682-1684
Number of pages3
JournalJournal of the American Ceramic Society
Volume77
Issue number6
DOIs
Publication statusPublished - Jan 1 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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