title: Aqueous ozone decomposition onto a Co2O3-alumina supported catalyst.
abstract: The aqueous ozone decomposition in the presence of a Co2O3-Alumina catalyst was investigated. Activity and estability assays were conducted by reusing the same catalyst in consecutive runs. The catalyst was shown to significantly increase the ozone abatement rate without loss in activity after five consecutive experiments. The process can be acceptably simulated by a double homogeneous-heterogeneous decomposition mechanism. An increase in the working temperature resulted in an opposite effect by increasing the extension of the homogeneous decomposition and lowering the extension of the heterogeneous decomposition. Similarly, different trends were observed by adding two distinct free radical scavengers (terc-butyl alcohol and carbonates).
authors.affiliation: Departamento de Ingeniería Química y Energética, Facultad de Ciencias Universidad de Extremadura, Badajoz, Spain. fjrivas@unex.es
authors.forename: F Javier
authors.initials: FJ
authors.lastname: Rivas
authors.forename: Fernando J
authors.initials: FJ
authors.lastname: Beltrán
authors.forename: Esther
authors.initials: E
authors.lastname: Vera
authors.forename: Olga
authors.initials: O
authors.lastname: Gimeno
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D002384:Catalysis; D003035:Cobalt / Q000737:chemistry*; D007700:Kinetics; D010083:Oxidants, Photochemical / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010126:Ozone / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods
chemical_list: D010083:Oxidants, Photochemical; D010087:Oxides; D003035:Cobalt; D010126:Ozone; D000537:Aluminum Oxide; C060728:cobalt oxide