A conductivity and thermal gravimetric analysis of a Y-doped SrZrO3 single crystal

J. Müller, K. D. Kreuer, J. Maier, S. Matsuo, M. Ishigame

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

From impedance spectroscopy combined with thermal gravimetric analysis (TGA), the conductivity properties and the defect chemistry of a nominally 5 mol% Y-doped SrZrO3 single crystal are derived. In the temperature range from 60 to 740°C, in which the charge carrier concentrations are frozen-in, proton, hole and oxygen vacancy conductivity with migration energies of 0.47 eV, 0.84 eV and 1.0 eV dominate in different atmospheres. The proton concentration is determined consistently from the water incorporation measured by TGA and conductivity data yielding a saturation concentration of 0.08 mol%.

Original languageEnglish
Pages (from-to)421-427
Number of pages7
JournalSolid State Ionics
Volume97
Issue number1-4
DOIs
Publication statusPublished - 1997 May 1
Externally publishedYes

Keywords

  • Mixed conductivity
  • Perovskite
  • Point defects
  • Proton conductivity

ASJC Scopus subject areas

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

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