Incorporation and conduction of proton in SrCe0.9 - XZrxY0.1O3 - δ

Yuji Okuyama, Kaori Isa, Young Sung Lee, Takaaki Sakai, Hiroshige Matsumoto

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28 Citations (Scopus)

Abstract

In order to clarify the mixed effect of a cation on proton conduction, the electrical conductivity and the proton concentration of SrCe0.9 - xZrxY0.1O3 - δ (x = 0.0, 0.3, 0.5, 0.7, 0.9) were measured by the AC impedance method and thermogravimetric analysis at 573-1173 K. The electrical conductivity reached a maximum value at x = 0.5. The proton concentration at x = 0.5 is the highest at this experimental temperature. The condition of the oxygen vacancy was examined by a Raman spectroscopic analysis. The Raman band around 350 cm- 1 attributed to the CeO6 stretching mode was observed and the half band width of the peak is broad when the cation on the B site is a mixture of Ce4 + and Zr4 +. It was found that the symmetry of the octahedron around B-site might be reduced due to the cation mix on the B-site.

Original languageEnglish
Pages (from-to)35-38
Number of pages4
JournalSolid State Ionics
Volume275
DOIs
Publication statusPublished - Jul 1 2015

All Science Journal Classification (ASJC) codes

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

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