A Study of Water Influence on Carbon Monoxide Adsorption and Oxidation on Nanocrystals of: γ-Fe2O3, Au/Fe2O3 and MnxZn1-xFe2O4
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| Journal |
Materials Science Forum (Volume 518) |
| Volume |
Recent Developments in Advanced Materials and Processes |
| Edited by |
Dragan P. Uskokovic, Slobodan K. Milonjic and Dejan I. Rakovic |
| Pages |
85-90 |
| DOI |
10.4028/www.scientific.net/MSF.518.85 |
| Online since |
July, 2006 |
| Authors |
V. Dondur,
Nenad Radić,
Boško Grbić,
Miha Drofenik
|
| Keywords |
CO Adsorption, Ferrite, Oxidation, Supported Gold Catalysts |
| Abstract |
In this paper the adsorption and oxidation of CO on nanocrystalline Au/γ-Fe2O3, Au/α-
Fe2O3, γ-Fe2O3 and a series of mixed ferrite with MnxZn1-xFe2O4 composition are investigated. The
catalysts were prepared by co-precipitation method and characterized using X-ray diffraction
(XRPD), specific surface (BET), transition electron spectroscopy (TEM) and magnetization
measurements. A temperature programmed desorption (TPD) study of the water and CO interaction
with nanocrystalline adsorbents is presented. The catalytic activities towards CO oxidation
increased in the following order: γ-Fe2O3 < MnxZn1-xFe2O4 < Au/γ-Fe2O3 . |
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