Formation of gold nanoparticles in zeolites

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

Research School of Chemistry & Applied Biomedical Sciences

Research output: Contribution to journal › Article

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 Au_n^δ+, and neutral nanoparticles Au_m. The relative amount of these states depends on the method of sample preparation, type of redox treatment and the SiO₂/Al₂O₃ molar ratio.

Original language	English
Pages (from-to)	2321-2326
Number of pages	6
Journal	International Journal of Modern Physics B
Volume	19
Issue number	15-17
DOIs	https://doi.org/10.1142/S0217979205030918
Publication status	Published - 10 Jul 2005

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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

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

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AU - Jentoft, F. C.

AU - Knop-Gericke, A.

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KW - Nanoparticles

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Access to Document

10.1142/S0217979205030918