Novel preparation method and characterization of Au-Fe/HY zeolite containing highly stable gold nanoparticles inside zeolite supercages

D. Horváth, M. Polisset-Thfoin, J. Fraissard, L. Guczi

Research output: Contribution to journalConference article

28 Citations (Scopus)

Abstract

A sample of 1%Au-0.5%Fe/HY was prepared by co-exchange in HY zeolite using iron(II)ethylenediammonium and Au(III)ethylenediamine complex-ions. Highly stable gold nanoparticles inside zeolite supercages were formed by autoreduction. Monometallic gold and iron samples were also prepared by ion exchange. 129Xe NMR and TEM studies revealed the presence of metallic gold nanoparticles along with iron cations inside the zeolite supercages. Neither the presence of metallic Au nor iron can be detected by X-ray photoelectron spectroscopy which is indicative of the presence of both metals inside the zeolite cavities. In the CO oxidation, the Au-Fe/Hy sample possessed the highest activity.

Original languageEnglish
Pages (from-to)153-156
Number of pages4
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

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Keywords

  • CO oxidation
  • Gold in HY zeolite
  • Iron in HY zeolite
  • Xe NMR and TEM studies

ASJC Scopus subject areas

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

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