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dc.contributor.author
Gómez, Leticia Ester
dc.contributor.author
Tiscornia, Ines Silvia
dc.contributor.author
Boix, Alicia Viviana
dc.contributor.author
Miro, Eduardo Ernesto
dc.date.available
2018-07-24T19:31:27Z
dc.date.issued
2012-03
dc.identifier.citation
Gómez, Leticia Ester; Tiscornia, Ines Silvia; Boix, Alicia Viviana; Miro, Eduardo Ernesto; CO preferential oxidation on cordierite monoliths coated with Co/CeO2 catalysts; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 37; 3-2012; 14812-14819
dc.identifier.issn
0360-3199
dc.identifier.uri
http://hdl.handle.net/11336/53003
dc.description.abstract
Cordierite monoliths washcoated with Co/CeO2 catalysts prepared from different methods were studied for the CO preferential oxidation reaction. Powder catalysts were also studied for the sake of comparison and in order to select the best formulations to prepare the catalytic coatings. High ? Co loaded catalysts resulted in good CO conversions and they showed Co3O4 as the main cobalt containing phase. A powder catalyst with low Co loading (below the solubility limit of cobalt in CeO2) was also prepared, but the behavior in the reaction under study was poor indicating that the segregation of Co3O4 was beneficial. For high Co loaded powders (10 wt.%), two different ways were used for the catalysts under preparation, namely wetness impregnation (WI) and co-precipitation (CP). The Co10(CP) catalyst showed somewhat higher CO conversions than the Co10(WI), probably due to the better redox capacity of the former, as seen in the TPR experiments. Taking into account these results, three cordierite ? washcoated catalysts were prepared with high Co loading. C1 and C2 were obtained by CeO2 washcoating followed by cobalt impregnation. In the first case, Ce oxide particles were obtained from a nitrate solution and in the second, a Nyacol suspension was used. A third sample was prepared (C3) using a slurry of a co-precipitated Co10(CP) catalyst. Monolith C3 showed the best CO conversion, although the difference with the other catalysts was not so evident as the one observed for the powder formulations. The mechanical stability, measured by ultrasound tests, was good for all monolithic catalysts and monolith C1 showed no-deactivation after 100 hours of time-on-stream at 190°C. The structured catalysts prepared were characterized by XRD, TPR, LRS, SEM and XPS, showing that their physical-chemistry features depend on the preparation method and Co loading.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Co-Ceo2
dc.subject
Monolithic Catalyts
dc.subject
Coprox
dc.subject.classification
Recubrimientos y Películas
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
CO preferential oxidation on cordierite monoliths coated with Co/CeO2 catalysts
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-20T14:17:27Z
dc.journal.volume
37
dc.journal.pagination
14812-14819
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Gómez, Leticia Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.description.fil
Fil: Tiscornia, Ines Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.description.fil
Fil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.description.fil
Fil: Miro, Eduardo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.journal.title
International Journal of Hydrogen Energy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijhydene.2012.01.159
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