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

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

Research output: Contribution to journalArticle

49 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
Publication statusPublished - 1997 May 1
Externally publishedYes

    Fingerprint

Keywords

  • Mixed conductivity
  • Perovskite
  • Point defects
  • Proton conductivity

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Müller, J., Kreuer, K. D., Maier, J., Matsuo, S., & Ishigame, M. (1997). A conductivity and thermal gravimetric analysis of a Y-doped SrZrO3 single crystal. Solid State Ionics, 97(1-4), 421-427.