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Título: | Deep oxidation of pollutants using gold deposited on a high surface area cobalt oxide prepared by a nanocasting route |
Autor: | Solsona, Benjamín CSIC ORCID; Aylón Marquina, Elvira CSIC ORCID; Murillo Villuendas, Ramón CSIC ORCID ; Mastral Lamarca, Ana María CSIC ; Monzonís, Alejandro; Agouram, S.; Davies, Thomas E.; Taylor, Stuart H.; García Martínez, Tomás CSIC ORCID | Fecha de publicación: | 2011 | Editor: | Elsevier | Citación: | Journal of Hazardous Materials 187(1–3): 544-552 (2011) | Resumen: | Gold deposited on a cobalt oxide with high surface area (138 m2 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 Co3O4 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 Auδ+ and Au°. | Versión del editor: | https://doi.org/10.1016/j.jhazmat.2011.01.073 | URI: | http://hdl.handle.net/10261/254648 | DOI: | 10.1016/j.jhazmat.2011.01.073 | ISSN: | 0304-3894 |
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