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The Mg-Fe layered double hydroxides (LDH) are becoming to be a group of promising materials with a lot of applications depending on their properties. These are influenced by the methods of synthesis, where it is not clearly presented which synthesis is suitable for materials with desired parameters. The aim of this work was to synthesize MgFe LDH according to standard recipes used for common MgAl LDH, when showing similarities and differences in-between the samples of Mg-Al and Mg-Fe LDH and derived mixed oxides (MO). Extensive experimental characterization of material structure and surface has been performed. Originally, statistical analysis of the characterization data revealed that LDH from particular synthesis were grouped together, showing statistical similarities. The structure properties of samples from particular synthesis were similar to both series of Mg/Al and Mg/Fe and also for the molar metal ratios 3/1 and 4/1. Oxides were completely rehydrated to the LDH form only for the co-precipitation method. The cell parameters in LDH and rehydrated forms mutually strongly correlated indicating the same layer properties of parent LDH and their rehydrated forms. The oxides that originated from the hydrothermal method had significantly higher densities of basic centres and population of strong O2− basic structures due to the abundance of surface defects and other phases. Oxides prepared by the sol-gel method showed somewhat higher density of the acid centres.

A series of Cu-Zn-Al oxide catalysts reduced in H2 was tested in glycerol hydrogenolysis in a stirred batch autoclave at 230°C. The catalysts were prepared by the precipitation – calcination method from layered double hydroxides (LDH) structures. The oxide forms of the catalysts were obtained by calcination of these structures at programmed temperatures, up to 350°C. The catalysts were characterized by the following methods: X-ray diffraction (XRD), temperature-programmed reduction (TPR), thermogravimetric analyses (TGA), N2-physisorption and temperature programmed desorption of ammonia (NH3-TPD). It was found that Zn plays acts as a structure modifier, influencing Cu dispersion and particle size. Consequently, Zn has an impact on the catalyst activity. In particular, the Zn effect had its maximum at the concentration corresponding to a ratio of Zn/(Cu+Al) = 0.35 where conversion of 65% and the selectivity to 1,2-propanediol of 70% was achieved after 60 min of reaction time., Sada oxidových katalyzátorů na bázi Cu-Zn-Al redukovaných vodíkem byla testována v hydrogenolýze glycerolu v míchaném vsádkovém autoklávu při 230 °C. Katalyzátory byly připraveny srážením hydrotalcitů a kalcinováním při 350 °C. Katalyzátory byly charakterizovány řadou technik: XRD, TPR, TGA, NH3-TPD.