Studies of ionic conductivity and structural phase transitions of Na3H(SO4)2 crystal

R. H. Chen, Ren June Wang, T. Fukami, C. S. Shern

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Abstract

The complex electrical impedance of Na3H(SO4)2 along the bm-axis has been measured from 25°C to 316°C in the frequency range 4 kHz-40 MHz. The temperature dependence of the electrical conductivity shows remarkable changes in the temperature range 160°C-260°C. The sample crystal becomes a fast ionic conductor above 260°C. The conduction mechanisms of proton and sodium ions in the different phases are analyzed in detail with respect to the structural features of the sample crystal.

Original languageEnglish
Pages (from-to)277-281
Number of pages5
JournalSolid State Ionics
Volume110
Issue number3-4
Publication statusPublished - 1998 Jul 2

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Keywords

  • Ionic conductivity
  • NaH(SO)
  • Structural phase transition

ASJC Scopus subject areas

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

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