Effects of the synthesis methods on the physicochemical properties of cerium dioxide powder

The CeO2 powders were synthesized using several different methods and characterized by X-ray diffraction (XRD), laser diffraction particle size analyzers, BET surface area analysis and transmission electron microscopy (TEM). The results show that CeO2 crystals prepared by different methods possess all the same fluorite structure. On the other hand, the physicochemical properties including particle size, cubic specific surface area, fluidity and density of cerium dioxide powder depend on the different synthesis procedures. This means that the properties requested for industrial applications can be tuned by generative methods. The calcined temperature is another very important parameter for the preparation of monodisperse superfine powder.