Ionic conductivities of crystalline and glassy Na4NbP3O12 and crystalline Na6Nb2P6O23

B. Wang, M. Greenblatt, J. Yan

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Abstract

Ionic conductivity and structure of crystalline, glassy Na4NbP3O12 and crystalline Na6Nb2P6O23 were studied by ac complex impedance and FTIR. FTIR spectra indicate the presence of pyrophosphate (P2O74-) groups in both crystalline and glassy Na4NbP3O12. The ionic conductivity of Na4NbP3O12 glass (σ400°C = 3.1 × 10-3 S cm-1) is at least two orders of magnitude higher than that of the crystalline phase (σ400°C=3.0×10-5 S cm >-1) due to large differences in the structure of the two modificat ions and the random distribution of Na+ ions over the equipotential sites in the glass network.

Original languageEnglish (US)
Pages (from-to)85-89
Number of pages5
JournalSolid State Ionics
Volume69
Issue number1
DOIs
StatePublished - Apr 1994

All Science Journal Classification (ASJC) codes

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

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