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dc.contributor | Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques |
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dc.contributor | Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
dc.contributor.author | Llorca Piqué, Jordi |
dc.contributor.author | Colussi, Sara |
dc.contributor.author | Domínguez Escalante, Montserrat |
dc.contributor.author | Trovarelli, Alessandro |
dc.contributor.author | Gayen, Arup |
dc.contributor.author | Das, Dipak |
dc.date | 2015-09-07 |
dc.identifier.citation | Llorca, J., Colussi, S., Dominguez, M., Trovarelli, A., Gayen, A., Das, D. Methanol steam reforming behavior of copper impregnated over CeO2-ZrO2 derived from a surfactant assisted coprecipitation route. "International journal of hydrogen energy", 07 Setembre 2015, vol. 40, núm. 33, p. 10463-10479. |
dc.identifier.citation | 0360-3199 |
dc.identifier.citation | 10.1016/j.ijhydene.2015.06.130 |
dc.identifier.uri | http://hdl.handle.net/2117/79996 |
dc.description.abstract | A series of ceria-zirconia solid solutions has been prepared by a surfactant assisted coprecipitation method. After impregnation of copper, their activities have been assessed for methanol steam reforming. The results indicate that the compositions with 10 and 15 at.% loading of copper on Ce0.6Zr0.4O2 exhibit maximum catalytic efficiency. Detailed structural analyses reveal high degree of copper dispersion on the ceria-zirconia matrix. In situ XPS studies confirm reduction of surface CuO species with concomitant lowering of Cu-surface atomic composition and increase of carbon. These evidences point to the formation of large aggregates of copper covered with coke that is suggested to be responsible for on stream activity loss. On regeneration, these aggregates break into a mixture of oxidized (Cu2+) and reduced (Cu-o and Cu+) copper species showing similar activity to the as prepared catalysts. In general, we have attributed catalytic activity to different proportions of copper components in the various forms of these catalysts. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
dc.language.iso | eng |
dc.rights | info:eu-repo/semantics/openAccess |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Energies |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject | Steam |
dc.subject | Copper alloys |
dc.subject | Methanol |
dc.subject | Zirconium alloys |
dc.subject | Copper |
dc.subject | Ceria-zirconia |
dc.subject | Methanol steam reforming |
dc.subject | Cu-sintering |
dc.subject | Coking |
dc.subject | Regeneration |
dc.subject | Oxygen storage capacity |
dc.subject | Hydrogen-production |
dc.subject | Cuo/zno/ceo2/zro2/al2o3 catalysts |
dc.subject | Cu/zno/al2o3 catalysts |
dc.subject | Support material |
dc.subject | Oxide catalysts |
dc.subject | Zirconia |
dc.subject | Ceria |
dc.subject | Deactivation |
dc.subject | Hydrocarbons |
dc.subject | Vapor |
dc.subject | Coure--Aliatges |
dc.subject | Metanol |
dc.subject | Zirconi--Aliatges |
dc.title | Methanol steam reforming behavior of copper impregnated over CeO2-ZrO2 derived from a surfactant assisted coprecipitation route |
dc.type | info:eu-repo/semantics/submittedVersion |
dc.type | info:eu-repo/semantics/article |