Manganese doped sol-gel materials with catalytic properties

In the present study manganese doped alumina and silica gels and thin films deposited on different substrates (refractory metals, silicon wafers) were obtained by the alkoxide and aqueous routes of the sol-gel method. The characterization of the films was realized by X-ray diffraction (XRD), and spe...

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Bibliographic Details
Published in:Journal of Optoelectronics and Advanced Materials 2006-04, Vol.8 (2), p.815-819
Main Authors: Crisan, M, Raileanu, M, Preda, S, Zaharescu, M, Valean, A M, Popovici, E J, Teodorescu, V S, Matejec, V, Mrazek, J
Format: Article
Language:English
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Summary:In the present study manganese doped alumina and silica gels and thin films deposited on different substrates (refractory metals, silicon wafers) were obtained by the alkoxide and aqueous routes of the sol-gel method. The characterization of the films was realized by X-ray diffraction (XRD), and spectroellipsometry (SE) methods. The un-supported gels (obtained by the gelation of the solutions used for the film deposition) were characterized by DTA/TG analysis, IR spectroscopy, transmission electron-microscopy and electron diffraction (TEM and SAED) and BET method (adsorption of krypton at temperature of liquid nitrogen) for surface area and pores volume determination. The sol-gel materials were tested as catalysts for the ozone decomposition.
ISSN:1454-4164