dc.contributor.author | Boukha, Zouhair | |
dc.contributor.author | Choya Atencia, Andoni | |
dc.contributor.author | Cortés-Reyes, Marina | |
dc.contributor.author | De Rivas Martín, Beatriz | |
dc.contributor.author | Alemany, Luis J. | |
dc.contributor.author | González Velasco, Juan Ramón | |
dc.contributor.author | Gutiérrez Ortiz, José Ignacio | |
dc.contributor.author | López Fonseca, Rubén | |
dc.date.accessioned | 2024-01-12T12:11:53Z | |
dc.date.available | 2024-01-12T12:11:53Z | |
dc.date.issued | 2020-06-26 | |
dc.identifier.citation | Applied Catalysis B: Environmental 277 : (2020) // Art. Id. 19280 | es_ES |
dc.identifier.issn | 0926-3373 | |
dc.identifier.issn | 1873-3883 | |
dc.identifier.uri | http://hdl.handle.net/10810/63911 | |
dc.description.abstract | In the present study, a series of four hydroxyapatite (HAP) supported palladium samples, with a Pd loading close to 0.5 %, obtained through their calcination at 773, 873, 973, or 1073 K has been investigated. These samples have been characterized using a wide battery of complementary techniques. From these studies, it was found that the rise of the calcination temperature induces a progressive dehydroxylation of the support and a structure evolution of the species containing Pd 2+ , from tetrahedral (Td) to square planar geometry (D 4h ). Moreover, this enhances markedly the metal-support interactions. For instance, at the highest temperature (1073 K), Pd particles were found encapsulated by a thin support layer. Consequently, two distinct reducible species have been identified; one of them manifests SMSI. This increase in the Pd-HAP interaction strength seems to (i) expand the HAP lattice, (ii) change the Pd 2+ coordination from Td to D 4h geometry, (iii) promote PdO reduction and (iv) suppress CO chemisorption. These entire properties do compensate the poor textural properties and benefit the efficiency and stability of the Pd active phase in methane oxidation reaction. | es_ES |
dc.description.sponsorship | Ministerio de Economía y Competitividad (CTQ2015-73219-JIN (AEI/FEDER/UE) and CTQ2016-80253-R (AEI/FEDER/UE)) // Basque Government (GIC IT-1297-19) // University of the Basque Country UPV/EHU (PIF15/335) | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/CTQ2015-73219-JIN | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/CTQ2016-80253-R | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | |
dc.subject | palladium-supported hydroxyapatite | es_ES |
dc.subject | calcination temperature | es_ES |
dc.subject | structural evolution | es_ES |
dc.subject | methane oxidation reaction | es_ES |
dc.subject | Pd active species | es_ES |
dc.subject | effect of water addition | es_ES |
dc.title | Influence of the calcination temperature on the activity of hydroxyapatite-supported palladium catalyst in the methane oxidation reaction | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.apcatb.2020.119280 | es_ES |
dc.identifier.doi | 10.1016/j.apcatb.2020.119280 | |
dc.departamentoes | Ingeniería química | es_ES |
dc.departamentoeu | Ingeniaritza kimikoa | es_ES |