GENERATION AND CHARACTERIZATION OF SUPPORTED FILMS OF TRANSITION-METAL AND RARE-EARTH-METAL OXIDE CATALYSTS

The generation of catalytically relevant metal and/or metal oxide comp ounds supported on silica fibres is described. The systems investigate d are Ni-degrees, Cu-degrees, Cu-degrees/ZnO, as well as perovskite-ty pe La/Fe, La/Ni and La/Mn oxide phases. Ultrasound-aided generated vap ours containing dissolved metal salt precursors are transferred onto p reheated quartz fibres and transformed into the catalytically relevant phases by subsequent calcination. Analytical SEM and X-ray diffractio n reveals the presence of differently crystalline, rough surfaces. The influence of the precursor salt and the conditions of calcination on the formation of the supported catalysts is discussed.