Microporous high-surface area layered CeO2

A simple procedure for the obtaining of microporous high-surface area layered ceria is described. The synthesis consists of the formation of cerium hydroxide by precipitation of cerium (III) chloride with ammonium carbonate followed by a calcination step. The samples obtained were calcined at temperatures from 150 °C to 350 °C. The effects of calcination temperature on the crystalline phase, particle size, anisotropy, surface area and the textural, morphological and reducibility properties have been studied by powder X-ray diffraction, BET, scanning electron microscopy and temperature-programmed reduction techniques. The anisotropic effects on the particle growth were studied by means of a Williamson–Hall plot.