Iron nanoparticles in x and y zeolites

K. Lázár, H. K. Beyer, G. Onyestyák, B. J. Jönsson, L. K. Varga, S. Pronier

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Strong reduction of extra-framework iron ions was attempted by sodium azide to form metallic iron particles with dimensions of a few nanometers. Na-X and Na-Y zeolites were partially ion exchanged to 5 wt % Fe content. The iron-zeolites were mixed with sodium azide, evacuated at 550 K and heated to 800 K in nitrogen to form sodium vapour by decomposing NaN3. The sodium exerts strong reduction, a part of iron can be reduced to zerovalent state to form particles in the nanometer size range, as in situ Mossbauer spectroscopy, AC susceptibility, X-ray diffraction and transmission electron microscopy studies revealed. Simultaneous partial recrystallization of the zeolite is also observed.

Original languageEnglish
Pages (from-to)155-158
Number of pages4
JournalNanostructured Materials
Volume12
Issue number1
DOIs
Publication statusPublished - Jan 1 1999
EventProceedings of the 1998 4th International Conference on Nanostructured Materials (NANO '98) - Stockholm, Swed
Duration: Jun 14 1998Jun 19 1998

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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