Share Email Print
cover

Proceedings Paper

Catalysts based on gold nanosized species incorporated into zeolites
Author(s): A. Simakov; N. Bogdanchikova; I. Tuzovskaya; E. Smoletseva; A. Pestryakov; M. Farias; M. Avalos
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Last years nanosized gold particles attract much attention as a component of industrially perspective catalysts for some reactions as CO oxidation, NO reduction etc. We studied several systems including gold based on different synthetic zeolites pure or doped with another metals (Fe, Na). It was shown by different techniques (XPS, UV-Vis spectroscopy, TPR) that intrinsic properties of zeolites used and gold system preparation method influence significantly on the contribution of different gold species (ions, clusters and particles). For mixed Au-Me-zeolites activity level and dynamic of CO conversion with time in steam and temperature depends on nature of zeolite and specificity of Au-Me interaction. All binary metal systems were found to be activated in different degree during catalytic activity test due to mutual interaction of gold with second metal. Extremely high level of CO conversion and low dependence of activity on temperature was observed for Au- Fe- H- and Na-Y zeolites. The change in contribution of gold nanoparticles was observed after sample contact with CO.

Paper Details

Date Published: 15 September 2005
PDF: 7 pages
Proc. SPIE 5924, Complex Mediums VI: Light and Complexity, 592410 (15 September 2005); doi: 10.1117/12.616102
Show Author Affiliations
A. Simakov, CCMC, Univ. Nacional Autonoma de Mexico (Mexico)
N. Bogdanchikova, CCMC, Univ. Nacional Autonoma de Mexico (Mexico)
I. Tuzovskaya, CCMC, Univ. Nacional Autonoma de Mexico (Mexico)
Tomsk Polytechnic Univ. (Russia)
E. Smoletseva, CCMC, Univ. Nacional Autonoma de Mexico (Mexico)
Tomsk Polytechnic Univ. (Russia)
A. Pestryakov, Tomsk Polytechnic Univ. (Russia)
M. Farias, CCMC, Univ. Nacional Autonoma de Mexico (Mexico)
M. Avalos, CCMC, Univ. Nacional Autonoma de Mexico (Mexico)


Published in SPIE Proceedings Vol. 5924:
Complex Mediums VI: Light and Complexity
Martin W. McCall; Graeme Dewar; Mikhail A. Noginov, Editor(s)

© SPIE. Terms of Use
Back to Top