Exchange of iron ions into layers of α-zirconium phosphate

U. Costantino, L. Szirtes, E. Kuzmann, J. Megyeri, K. Lázár

Research output: Contribution to journalConference article

17 Citations (Scopus)

Abstract

Exchange of Fe3+ and Fe2+ ions into layers of α-zirconium phosphate is achieved in aqueous media by using monosodium and/or ethanolic forms of the host precursor. The products obtained are characterized by chemical analysis, X-ray powder diffraction and Mössbauer spectroscopy. For site assignments, structural modeling is used by combining the measured and simulated X-ray diffractograms. Fe3+ ions are incorporated only in part, and a biphasic product is obtained. Exchange of Fe2+ ions leads to a single phase with 50% iron loading with Fe2+ ions located in two different coordination states. On a long-term storage in open air, Fe2+ → Fe3+ oxidation proceeds without noticeable change in the crystal structure.

Original languageEnglish
Pages (from-to)359-364
Number of pages6
JournalSolid State Ionics
Volume141-142
DOIs
Publication statusPublished - May 1 2001
Event14th Intenational Symposium on the Reactivity of Solids - Budapest, Hungary
Duration: Aug 27 2000Aug 31 2000

Keywords

  • Ion-exchange of iron
  • Mössbauer spectroscopy
  • XRD
  • Zirconium phosphate

ASJC Scopus subject areas

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

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