Influence of Fe introduction method on gold state in NaY zeolite

E. Smolentseva, A. Pestryakov, N. Bogdanchikova, A. Simakov, M. Avalos, M. Farias, J. Diaz, V. Gurin, A. Tompos

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Abstract

The present work is devoted to the study of some properties (size, electronic state, redox properties, interaction with matrix) of gold clusters and nanosized particles in Na-Y zeolite modified by iron. Two methods of iron introduction were applied: wet-impregnation and ion-exchange, which result in different structure and reducibility of iron species. Aggregation of iron species and their probable dissolution during gold deposition in samples prepared by wet-impregnation permits to form new Au, Fe and Au-Fe species in contrast to samples prepared by ion-exchange. The strong interaction of Au with Fe species in Au/Fe-imp/NaY changes noticeably a behavior of gold nanoparticles under heating.

Original languageEnglish
Pages (from-to)2496-2501
Number of pages6
JournalInternational Journal of Modern Physics B
Volume19
Issue number15-17
DOIs
Publication statusPublished - 10 Jul 2005

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Keywords

  • Gold catalysts
  • HRTEM
  • Nanoparticles
  • Uv-visible spectroscopy
  • XPS
  • XRD
  • Zeolites

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Mathematical Physics

Cite this

Smolentseva, E., Pestryakov, A., Bogdanchikova, N., Simakov, A., Avalos, M., Farias, M., Diaz, J., Gurin, V., & Tompos, A. (2005). Influence of Fe introduction method on gold state in NaY zeolite. International Journal of Modern Physics B, 19(15-17), 2496-2501. https://doi.org/10.1142/S0217979205031213