Comparative study between traditional and modified Pechini synthesis methods in the preparation of LaNiO₃ and LaNi_0,8Co_0,2O₃ catalysts

One of the ways of obtaining hydrogen is from the methane reforming reaction, which is an endothermic and non-spontaneous reaction. In order to minimize this energy, nickel catalysts are used. This work aims to synthesize and characterize the catalysts LaNiO₃ and LaNi_0,8Co_0,2O₃ using the Pechini method, making use of citric acid and ethylene glycol and modified Pechini, using the edible gelatin as a chelating and polymerizing agent. The obtained materials were characterized by X-Ray Diffraction (XRD), where the formation of peaks characteristic of perovskite and monophasic structures was observed. Scanning Electron Microscopy (SEM) showed that porosity and powders with few agglomerates were observed by both methods. In the analysis of determination of the specific surface area (BET) the materials were shown with areas that are according to the literature