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Origin of high activity and selectivity of CuO/CeO2 catalysts prepared by solution combustion synthesis in CO-PROX reaction

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10.1021/acs.jpcc.6b02433
 
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Barbato, P.S.
Colussi, Sara
Di Benedetto, A.
Landi, Giada
Lisi, L.
Llorca Piqué, JordiMés informacióMés informacióMés informació
Trovarelli, Alessandro
Document typeArticle
Defense date2016-06-23
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
A CuO/CeO2 catalyst with 4 wt % CuO nominal content has been prepared by solution combustion synthesis (SCS) and characterized by ICP-MS, BET surface area analysis, XPS, HRTEM, and H-2, and/or CO TPR. The catalyst, showing a rather homogeneous distribution of copper that strongly interacts with ceria, has been tested in CO-PROX reaction. The enhanced performance of the catalyst compared to that of an impregnated sample with the same copper loading has been explained by modeling the experimental CO2 temperature-programmed desorption (TPD) curve, which allowed the determination and quantification of different active sites. The temperature range of activity and the ratio of the amount of sites activating CO and H-2 oxidation, respectively, estimated for the two catalysts through the model explain the superior performance of the sample prepared by SCS despite its lower surface area.
CitationBarbato, P., Colussi, S., Di Benedetto, A., Landi, G., Lisi, L., Llorca, J., Trovarelli, A. Origin of high activity and selectivity of CuO/CeO2 catalysts prepared by solution combustion synthesis in CO-PROX reaction. "The journal of physical chemistry. Part C, nanomaterials and interfaces", 23 Juny 2016, vol. 120, núm. 24, p. 13039-13048. 
URIhttp://hdl.handle.net/2117/99997
DOI10.1021/acs.jpcc.6b02433
ISSN1932-7447
Publisher versionhttp://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b02433
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  • NEMEN - Nanoenginyeria de materials aplicats a l'energia - Articles de revista [244]
  • Departament d'Enginyeria Química - Articles de revista [2.028]
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