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A series of mixed oxide catalysts Ce x Zr 1Àx O 2 with different compositions (x = 0.93, 0.80, 0.75, 0.60, 0.55, and 0.50) were synthesized by co-precipitation technique using ammonia as the precipitant agent. Textural and structural properties of calcined ceria-zirconia oxides were characterized by nitrogen adsorption, X-ray diffraction and Raman spectroscopy. The redox properties were investigated by temperature-programmed reduction measurement using H 2 . The procedure of preparation as welldoi:10.1016/j.arabjc.2011.07.023 fatcat:o6m2ovkgn5dv3brwijfmdib4da