Crystal structure of beta-lead fluoride doped potassium fluoride and ionic conduction

Y. Ito, T. Mukoyama, F. Kanamaru, S. Yoshikado

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Structural studies and ionic conductivity measurements have been carried out on a single crystal of β-Pb0.9K0.1F1.9, which was synthesized using a dry method. The crystal is cubic: a==5.941 (1) Å, space group, Fm3m, z=4. The structure was refined to R=0.025 by least-square methods, using 83 unique observed reflections. The conductivity of this material is σT=1.4 (S cm-1 K) at 300 K and the activation energy 0.24 eV. From these results it appears that the fluorine vacancies may be considered to be predominant mobile species in the extrinsic region. The phase is one of the best fluorine ion conductors.

Original languageEnglish
Pages (from-to)283-287
Number of pages5
JournalSolid State Ionics
Volume73
Issue number3-4
DOIs
Publication statusPublished - Nov 1994

Keywords

  • Beta-lead fluoride doped potassium fluoride
  • Ionic conductivity - fluorine
  • Structure

ASJC Scopus subject areas

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

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