Electrochemical characterization of nanostructured zirconias

Samir Boulfrad, E. Djurado*, J. Fouletier

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Redox stability of cubic nanostructured zirconia ceramics, free of any secondary phases, has been investigated experimentally as a function of grain size. Pure 8 mol% Y2O3-doped ZrO2 powders were synthesized by a spray pyrolysis process and then compacted by uniaxial pressing, followed by cold isostatic pressing. Using appropriate thermal treatments, average grain sizes ranging from 25 to 242 nm and relative densities from 71% up to 98% were obtained. An electrochemical characterization was performed with comparison on ceramics of 3.2 and 7.6 μm and 98% of theoretical density starting from commercial YSZ powder.

Original languageEnglish (US)
Pages (from-to)978-983
Number of pages6
JournalSolid State Ionics
Volume180
Issue number14-16
DOIs
StatePublished - Jun 25 2009

Keywords

  • Cubic
  • Electrochemical reduction
  • Electrolyte
  • Nanostructured zirconia
  • Redox stability
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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