Application of Al and Pt nanofilm systems produced by magnetron sputtering for modification of catalytic properties of alumina obtained on ferritic foil |
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| Authors: | Kazimierz Reszka Dawid Murzyński Jan Rakoczy |
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| Affiliation: | 1. AGH University of Science and Technology, Faculty of Materials Science and Ceramics, A. Mickiewicza Av. 30, 30 059 Kraków, Poland;2. AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, A. Mickiewicza Av. 30, 30 059 Kraków, Poland;3. Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30 387 Kraków, Poland;4. Jagiellonian University, Ma?opolska Center of Biotechnology, Gronostajowa 7A, 30 387 Kraków, Poland;5. Cracow University of Technology, Faculty of Materials Engineering and Physics, Warszawska 24, 31 155 Krakow, Poland;6. AGH University of Science and Technology, Faculty of Foundry Engineering, Reymonta 23, 30 059 Krakow, Poland;7. University of Zaragoza, Department of Chemical Engineering and Environmental Technologies, Instituto en Nanociencia y Materiales de Aragon, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50 018 Zaragoza, Spain;8. Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28 029 Madrid, Spain |
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| Abstract: | In the process of producing the catalytic systems using the method for oxidation of ferritic foil with a deposited film of catalytic elements, it is important to select the film thickness providing the best activity of the catalytic system. If the film is deposited prior to the process of oxidation, it is expected that during the growth of oxide crystallites, the film will be broken and the maximum dispersion of catalytic elements will be obtained. If the film is formed of aluminium-active elements, it is expected that the oxide hybrid systems with higher activity of catalytic sites will be produced. Experimental investigations presented in this paper were focused on measuring the thickness of Al and Pt nanofilms and (Pt + Al) composites by the X-ray Reflectivity method, produced by the PVD method, and the morphology of oxide films obtained at various periods of oxidation. The catalytic activity of alumina films coated with Al, Pt nanofilms, Pt/Al and Al/Pt laminates and (Pt + Al) composites was compared, and it was found that the systems with Pt films and Pt/Al laminates revealed the highest activity of basic sites. |
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