title: Deep oxidation of pollutants using gold deposited on a high surface area cobalt oxide prepared by a nanocasting route.
abstract: Gold deposited on a cobalt oxide with high surface area (138 m(2)g(-1)), obtained through a nanocasting route using a siliceous KIT-6 mesoporous material as a hard template, has demonstrated high activity for the total oxidation of propane and toluene, and ambient temperature CO oxidation. The addition of gold promotes the activity when compared to a gold-free Co(3)O(4) catalyst prepared using the same nanocasting technique. The enhanced catalytic activity when gold is present has been explained for the deep oxidation of propane and toluene in terms of the improved reducibility of cobalt oxide when gold is added, rather than to the intrinsic activity of metallic gold particles. The improved behaviour for CO oxidation has been linked to the simultaneous presence of Au(δ+) and Au°.
authors.affiliation: Departament d'Enginyeria Química, Universitat de València, C/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain. benjamin.solsona@uv.es
authors.forename: Benjamín
authors.initials: B
authors.lastname: Solsona
authors.forename: Elvira
authors.initials: E
authors.lastname: Aylón
authors.forename: Ramón
authors.initials: R
authors.lastname: Murillo
authors.forename: Ana M
authors.initials: AM
authors.lastname: Mastral
authors.forename: Alejandro
authors.initials: A
authors.lastname: Monzonís
authors.forename: Said
authors.initials: S
authors.lastname: Agouram
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Davies
authors.forename: Stuart H
authors.initials: SH
authors.lastname: Taylor
authors.forename: Tomás
authors.initials: T
authors.lastname: Garcia
mesh_terms: D002384:Catalysis; D003035:Cobalt / Q000737:chemistry*; D004785:Environmental Pollutants / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D036103:Nanotechnology; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D004785:Environmental Pollutants; D010087:Oxides; D003035:Cobalt; D006046:Gold; C060728:cobalt oxide