Formation of gold nanoparticles in zeolites

A. Pestryakov, I. Tuzovskaya, E. Smolentseva, N. Bogdanchikova, F. C. Jentoft, A. Knop-Gericke

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The formation of gold nanoparticles in mordenites has been studied by the methods of FTIR spectroscopy of adsorbed CO and diffuse reflectance UV-visible spectroscopy. Different states of ionic and metallic gold were detected in the zeolite cavities and on the external surface of the zeolite - Au+ and Au3+ ions, charged clusters Aunδ+, and neutral nanoparticles Aum. The relative amount of these states depends on the method of sample preparation, type of redox treatment and the SiO2/Al2O3 molar ratio.

Original languageEnglish
Pages (from-to)2321-2326
Number of pages6
JournalInternational Journal of Modern Physics B
Volume19
Issue number15-17
DOIs
Publication statusPublished - 10 Jul 2005

Keywords

  • FTIR
  • Gold catalysts
  • Nanoparticles
  • UV-visible spectroscopy
  • Zeolites

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Formation of gold nanoparticles in zeolites'. Together they form a unique fingerprint.

  • Cite this

    Pestryakov, A., Tuzovskaya, I., Smolentseva, E., Bogdanchikova, N., Jentoft, F. C., & Knop-Gericke, A. (2005). Formation of gold nanoparticles in zeolites. International Journal of Modern Physics B, 19(15-17), 2321-2326. https://doi.org/10.1142/S0217979205030918