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Título: | H2 oxidation as criterion for PrOx catalyst selection: Examples based on Au–CoOx-supported systems |
Autor: | Reina, T.R. CSIC ORCID; Megías-Sayago, Cristina CSIC ORCID; Pérez-Florez, Alejandro; Ivanova, Svetlana CSIC ORCID; Centeno, Miguel Ángel CSIC ORCID; Odriozola, José Antonio CSIC ORCID | Fecha de publicación: | 2015 | Editor: | Elsevier | Citación: | Journal of Catalysis, 326:161-171 (2015) | Resumen: | A new approach for understanding PrOx reaction over gold catalysts is proposed in this work. The competition between H2 and CO oxidation has been studied over a series of Au/MOx/Al2O3 (M = Ce and Co) catalysts in simulated post-reforming gas stream, containing H2O and CO2 for H2 cleanup goals. The catalysts’ behavior is correlated to their oxygen storage capacity, redox behavior, and oxidation ability. The estimation of the reaction rates reveals that in these solids the H2 combustion, the selectivity limiting factor in the PrOx process, is mainly controlled by the support and not by the gold presence. The possible use of the hydrogen oxidation reaction as a catalyst selection criterion is discussed. | Versión del editor: | http://dx.doi.org/10.1016/j.jcat.2015.03.015 | URI: | http://hdl.handle.net/10261/115559 | DOI: | 10.1016/j.jcat.2015.03.015 |
Aparece en las colecciones: | (ICMS) Artículos |
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Figures_Journal of Catalysis 326 2015 161-171.doc | Texto | 4,23 MB | Microsoft Word | Visualizar/Abrir |
Figures_Journal of Catalysis 326 2015 161-171.doc | Figuras | 4,23 MB | Microsoft Word | Visualizar/Abrir |
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