Catalytic Combustion of Ethyl Acetate over Al 2 O 3 鄄 Ce 0 . 5 Zr 0 . 5 O 2 Supported Metal Oxide Catalysts

The catalysts for the combustion of ethyl acetate were prepared using Fe, Co, Cu, Cr, and Mn metal oxides as active components supported on Al2O3鄄Ce0.5Zr0.5O2 mixed oxides and characterized by X鄄ray diffraction (XRD), temperature programmed reduction (TPR), oxygen storage capacity measurement, BET surface area, XPS measurement, and activity test. According to the results of characterization, it was found that Cu/Al2O3鄄Ce0.5Zr0.5O2 (1:2, mass ratio) andMn/Al2O3鄄Ce0.5Zr0.5O2 (1颐2) catalysts presented excellent activity for the catalytic combustion of ethyl acetate, because of the more reducible species and high reducibility of the catalysts. For ethyl acetate oxidation, more than 99% conversion was achieved at 245 益 over catalysts Cu/Al2O3鄄Ce0.5Zr0.5O2 (1颐2) and Mn/Al2O3鄄Ce0.5Zr0.5O2 (1:2, mass ratio), indicating that the catalysts had great potential for wide use.