Lanthanum-strontium cuprate: A promising cathodic material for solid oxide fuel cells

G. N. Mazo, S. N. Savvin, A. M. Abakumov, J. Hadermann, Yu A. Dobrovol'skii, L. S. Leonova

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Samples of lanthanum-strontium cuprate LaSrCuO3.61 are synthesized by a solid-phase method at 1473 K, in air. Electron diffraction patterns reveal low-intensity satellites whose position is described in the reciprocal space by the (3 + 2)-dimensional space group I4/mmm(αα0, α-α0)00mg. Using a five-layer cell LaSrCuO 4-δ|YSZ|LaSrCuO4-δ|YSZ|LaCuO 4-δ prepared by isostatic hot pressing, the ionic component of conductivity of LaSrCuO4-δ is determined (σ 1179 K = 3.8 × 10-3 S cm-1), which is commensurate with other mixed conductors based on complex oxides of cobalt and iron.

Original languageEnglish
Pages (from-to)436-442
Number of pages7
JournalRussian Journal of Electrochemistry
Volume43
Issue number4
DOIs
Publication statusPublished - Apr 2007
Externally publishedYes

Keywords

  • Fuel cell cathodes
  • Oxygen-ionic conductivity
  • Perovskites

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