Synthesis and investigation of the physico-chemical properties of catalysts based on mixed oxides CexZr1−xO2

S. Nousir, R. Maache, S. Azalim, M. Agnaou, R. Brahmi, M. Bensitel
2015 Arabian Journal of Chemistry  
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 well
more » ... as the composition has a great influence on the structural and textural properties of mixed oxides. Fluorite type oxides were shown to be a very interesting support for the total oxidation, since these materials led to the complete decomposition of ethyl acetate at rather low temperatures. Of the synthesized materials, Ce 0.5 Zr 0.5 O 2 showed the best catalytic activity. ª 2011 Production and hosting by Elsevier B.V. on behalf of King Saud University.
doi:10.1016/j.arabjc.2011.07.023 fatcat:o6m2ovkgn5dv3brwijfmdib4da