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Total Oxidation of Naphthalene Using Mesoporous CeO2 Catalysts Synthesized by Nanocasting from Two Dimensional SBA-15 and Three Dimensional KIT-6 and MCM-48 Silica Templates |
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| Authors: | Asunción Aranda Begoña Puértolas Benjamín Solsona Said Agouram Ramón Murillo Ana María Mastral Stuart H Taylor Tomas Garcia |
| Affiliation: | 1. Instituto de Carboquímica (CSIC), C/Miguel Luesma, 50018, Zaragoza, Spain 2. Departament d’Enginyeria Química, Universitat de València, C/Dr. Moliner 50, 46100, Burjassot, Valencia, Spain 3. Department of Applied Physics and Electromagnetism, Universitat de València, C/Dr. Moliner 50, 46100, Burjassot, Valencia, Spain 4. SCSIE, Universitat de València, C/Dr. Moliner 50, 46100, Burjassot, Valencia, Spain 5. Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK |
| Abstract: | Ceria catalysts have been prepared by a nanocasting procedure using SBA-15, MCM-48 and KIT-6 silica-based templates, and investigated for the total oxidation of naphthalene. In all cases cubic fluorite CeO2 was prepared, and the structure of the template was replicated when SBA-15 and MCM-48 were used. The KIT-6 template was not replicated by the nanocasting synthesis, but in all cases mesoporous CeO2 was obtained with high surface areas (91–190 m2 g?1). All of the catalysts demonstrated high activity for naphthalene oxidation to CO2, and the most active was the catalyst prepared from the KIT-6 template. The high activity was attributed to the small crystallite size of the CeO2, combined with high surface area and the highly accessible catalyst surface. |
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