Highly dispersed Ptδ+ on TixCe(1−x)O2 as an active phase in preferential oxidation of CO
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Title: | Highly dispersed Ptδ+ on TixCe(1−x)O2 as an active phase in preferential oxidation of CO |
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Authors: | Rico Francés, Soledad | Jardim, Erika de Oliveira | Wezendonk, Tim A. | Kapteijn, Freek | Gascon, Jorge | Sepúlveda-Escribano, Antonio | Ramos-Fernández, Enrique V. |
Research Group/s: | Materiales Avanzados |
Center, Department or Service: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Keywords: | PROX | Ceria | Titania | Platinum | Hydrogen purification |
Knowledge Area: | Química Inorgánica |
Issue Date: | Jan-2016 |
Publisher: | Elsevier |
Citation: | Applied Catalysis B: Environmental. 2016, 180: 169-178. doi:10.1016/j.apcatb.2015.06.031 |
Abstract: | Structure–activity relationships for 1 wt.% Pt catalysts were investigated for a series of TixCe(1−x)O2 (x = 1, 0.98, 0.9, 0.5, 0.2 and 0) supports prepared by the sol–gel method. The catalysts prepared by impregnation were characterized in detail by applying a wide range of techniques as N2-isotherms, XRF, XRD, Raman, XPS, H2-TPR, Drifts, UV–vis, etc. and tested in the preferential oxidation of CO in the presence of H2. Also several reaction conditions were deeply analyzed. A strong correlation between catalyst performance and the electronic properties let us to propose, based in all the experimental results, a plausible reaction mechanism where several redox cycles are involved. |
Sponsor: | Financial support from Generalitat Valenciana and Ministerio de Economía y Competitividad (Spain) through projects PROME-TEOII/2014/004 and MAT2010-21147 is gratefully acknowledged. EOJ also thanks the CNPq – Brazil for her grant. EVRF gratefully acknowledge the Ministerio de Economía y Competitividad (Spain) for his Ramon y Cajal grant (RYC-2012-11427). |
URI: | http://hdl.handle.net/10045/57836 |
ISSN: | 0926-3373 (Print) | 1873-3883 (Online) |
DOI: | 10.1016/j.apcatb.2015.06.031 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2015 Elsevier B.V. |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1016/j.apcatb.2015.06.031 |
Appears in Collections: | INV - LMA - Artículos de Revistas |
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2016_Rico_etal_ApplCatB_final.pdf | Versión final (acceso restringido) | 1,04 MB | Adobe PDF | Open Request a copy |
2016_Rico_etal_ApplCatB_accepted.pdf | Accepted Manuscript (acceso abierto) | 449,46 kB | Adobe PDF | Open Preview |
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