Iron ions in ZSM-5 zeolite: Fe3+ in framework, Fe2+ in extra-framework positions in catalytic N2O decomposition

K. Lázár, O. Pozdnyakova, A. Wootsch, P. Fejes

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Fe-ZSM-5 samples containing a combination of 57Fe3+ in framework (FW) and regular iron in extra-framework (EFW) sites were prepared by introducing 57Fe in hydrothermal synthesis, then exchanging Fe2+ of natural isotope composition into the lattice. The stability for one part of Fe2+ and Fe2+ ↔ Fe3+ reversibility for the other part in catalytic decomposition of N2O is demonstrated by in situ Mössbaer measurements. Formation of dinuclear FeFW-O-FeEFW pairs is not prevailing.

Original languageEnglish
Pages (from-to)779-784
Number of pages6
JournalHyperfine Interactions
Volume167
Issue number1-3
DOIs
Publication statusPublished - Jan 2006

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exchanging
Hydrothermal synthesis
in situ measurement
Isotopes
Iron
isotopes
Ions
Decomposition
decomposition
iron
synthesis
Chemical analysis
ions
ZSM-5 zeolite

Keywords

  • Fe and Fe simultaneously
  • NO decomposition

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Nuclear and High Energy Physics

Cite this

Iron ions in ZSM-5 zeolite : Fe3+ in framework, Fe2+ in extra-framework positions in catalytic N2O decomposition. / Lázár, K.; Pozdnyakova, O.; Wootsch, A.; Fejes, P.

In: Hyperfine Interactions, Vol. 167, No. 1-3, 01.2006, p. 779-784.

Research output: Contribution to journalArticle

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