National Repository of Grey Literature 9 records found  Search took 0.01 seconds. 
Monolithic Co-Mn-Al Oxide Catalysts in Total Oxidation of Ethanol
Ludvíková, Jana ; Jirátová, Květa ; Klempa, Jan
We studied preparation of mixed oxide Co-Mn-Al catalysts over cordierite monoliths and examinated their properties in comparison with properties of other catalysts prepared byimpregnation or pelletizing.
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Plný tet: SKMBT_C22012110811231 - Download fulltextPDF
Cesium Doped Co-Mn-Al Mixed Oxides in Total Methanol Oxidation
Ludvíková, Jana ; Jirátová, Květa ; Piwowarska, Z. ; Chmielarz, L. ; Jablonska, m.
In this study we focused on both preparations of Co-Mn-Al precursors by mechanochemical treatment of corresponding nitrates and NH4HCO3 and on modification of oxides by doping with cesium. The prepared precursors and catalysts were studied by TGA/DTA, URD, UV-Vis, NH3-TPD and tested in total oxidation of methanol. The results obtained are summarized.
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Plný tet: SKMBT_C22012110811232 - Download fulltextPDF
Pelletized Catalysts for VOC Oxidation with Non-Uniform Distribution of Mixed Oxides – Preparation and Characterization
Ludvíková, Jana ; Klempa, Jan ; Jirátová, Květa
In this work, preparation methods were explored to prepare catalysts with non-uniform distribution of active components. Physical-chemical properties of the catalysts were examined, as well as their activity in total oxidation of ethanol as a model VOC.
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Plný tet: SKMBT_C22012102413480 - Download fulltextPDF
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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Total Oxidation of Organic Compounds in Air over Oxide Catalysts
Ludvíková, Jana ; Jirátová, Květa ; Kovanda, F. ; Klempa, Jan
The aim of this work was investigation of the influence of various combinations of metals, Cu, Co, Ni, Mn or Al on properties of LDH (layered double hydroxides)-precursors and their calcined forms, examination of formation of these layered double hydroxides on a model support (anodized aluminum foil), and determination of catalytic activity of the calcined precursors in oxidation of ethanol as model compound.
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Preparation and Properties of LDH-related Mixed Oxides Deposited on Al2O3/Al Support
Kovanda, F. ; Jirátová, Květa
Deposition of thin active layer on Al2O3/Al supporting material (anodized aluminum foil) during reaction with aqueous solutions of various metal nitrates under hydrothermal conditions, as well as physical chemical properties and catakytic activity of the realted mixed oxides in total oxidation of ethanol was studied.

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