title: Removal of oxygenated volatile organic compounds by catalytic oxidation over Zr-Ce-Mn catalysts.
abstract: 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 Zr(0.4)Ce(0.6-x)Mn(x)O(2) 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 Zr(0.4)Ce(0.24)Mn(0.36)O(2) due to a high oxygen mobility and surface Mn(4+) concentration.
authors.affiliation: Univ Lille Nord de France, USTL, Unité de Catalyse et de Chimie du Solide, UMR CNRS 8181, 59652 Villeneuve d'Ascq, France.
authors.forename: Saïd
authors.initials: S
authors.lastname: Azalim
authors.forename: Manuel
authors.initials: M
authors.lastname: Franco
authors.forename: Rachid
authors.initials: R
authors.lastname: Brahmi
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Giraudon
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Lamonier
mesh_terms: D000440:Butanols / Q000737:chemistry; D002384:Catalysis; D002563:Cerium / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D000440:Butanols; D055549:Volatile Organic Compounds; D002563:Cerium; D008345:Manganese; D015040:Zirconium; D010100:Oxygen