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Article Dans Une Revue Journal of Hazardous Materials Année : 2011

Removal of oxygenated volatile organic compounds by catalytic oxidation over Zr-Ce-Mn catalysts

Résumé

The composition–activity relationship of Zr–Ce–Mn–O materials was investigated for the catalytic removal of Oxygenated Volatile Organic Compounds (OVOC) emitted by stationary sources. Using a sol–gel method, very high surface specific areas, small crystallite sizes and high redox properties were obtained for Zr0.4Ce0.6−xMnxO2 catalytic systems after calcination at 500 °C. The textural and redox properties were improved when Mn content increased in the material, especially for x = 0.36. As a result the most active and selective catalyst in the butanol (model of OVOC) oxidation was obtained for the nominal composition Zr0.4Ce0.24Mn0.36O2 due to a high oxygen mobility and surface Mn4+ concentration.

Domaines

Catalyse
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Dates et versions

hal-04135520 , version 1 (21-06-2023)

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Citer

Saïd Azalim, Manuel Franco, Rachid Brahmi, Jean-Marc Giraudon, Jean-Francois Lamonier. Removal of oxygenated volatile organic compounds by catalytic oxidation over Zr-Ce-Mn catalysts. Journal of Hazardous Materials, 2011, Journal of Hazardous Materials, 188, pp.422-427. ⟨10.1016/j.jhazmat.2011.01.135⟩. ⟨hal-04135520⟩
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