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Titania Supported Co-Mn-Al Catalysts in Total Oxidation of Ethanol
Ludvíková, Jana ; Jirátová, Květa ; Klempa, Jan
In pelletized mixed oxide catalysts prepared by calcination of coprecipitated precursors, a considerable part of the pellets is not utilized in case of very fast catalytic reaction, due to the effect of internal and external diffusion. Therefore, deposition of thin active layer on a supporting material is advantageous. In this contribution, the effect of the support (titania grains and extrudates) on properties and catalytic activity in VOC oxidation of both catalyst geometric forms were examined.
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Thin Functional Films of TiO2 Nanoparticles
Morozová, Magdalena ; Klusoň, Petr ; Hejda, S. ; Kment, Štěpán ; Šolcová, Olga
Magnetron Sputtering and the Modulated Hollow Cathode Plasma Jet Sputtering. As chemical method the sol-gel process carried out in the templating environment as dip-coating and piezo-jet printing was employed. The produced films differed in many structural characteristics and also in their photoelectrochemical behaviour, as the primary sought function. The produced layers were described by means of atomic force microscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, Raman spectroscopy, ellipsometry and profilometry. Then the films were used as electrodes in photoelectrochemical experiments.
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Úplná oxidace organických látek obsažených ve vzduchu na oxidických katalyzátorech
Ludvíková, Jana ; Jirátová, Květa ; Kovanda, F. ; Klempa, Jan
Cílem této práce bylo prostudovat vliv různé kombinace kovů Cu, Co, Ni, Mn, případně Al na vlastnosti prekurzorů LDH a jejich kalcinátů, prozkoumat možnosti tvorby těchto vrstevnatých hydroxidů na modelovém nosiči, a to anodicky zoxidované hliníkové folii, a zjistit katalytickou aktivitu kalcinovaných prekurzorů při oxidaci modelové sloučeniny, ethanolu.
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