Synthesis, crystal structure and electrochemical properties of the manganese-doped LiNaFe[PO4]F materials

Hamdi Ben Yahia, Masahiro Shikano, Hikari Sakaebe, Hironori Kobayashi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The new compounds LiNaFe1-xMnx[PO4]F (x ≤ 1/4) were synthesized by a solid state reaction route. The crystal structure of LiNaFe3/4Mn1/4[PO4]F was determined from single crystal X-ray diffraction data. LiNaFe 3/4Mn1/4[PO4]F crystallizes with the Li 2Ni[PO4]F-type structure, space group Pnma, a = 10.9719(13), b = 6.3528(7), c = 11.4532(13) Å, V = 798.31(16) Å3, and Z = 8. The structure consists of edge-sharing (Fe 3/4Mn1/4)O4F2 octahedra forming (Fe3/4Mn1/4)FO3 chains running along the b-axis. These chains are interlinked by PO4 tetrahedra forming a three-dimensional framework with the tunnels and the cavities filled by the well-ordered sodium and lithium atoms, respectively. The manganese-doped phases show poor electrochemical behavior comparing to the iron pure phase LiNaFe[PO4]F

Original languageEnglish
Pages (from-to)52-57
Number of pages6
JournalMaterials Chemistry and Physics
Volume141
Issue number1
DOIs
Publication statusPublished - 15 Aug 2013

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Keywords

  • Electrochemical properties
  • Inorganic compounds
  • Mössbauer spectroscopy
  • Powder diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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