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dc.contributor.author | Pinos-Vélez, Verónica | |
dc.contributor.author | Osegueda, Oscar | |
dc.contributor.author | Crivoi, Dana Georgiana | |
dc.contributor.author | Llorca, Jordi | |
dc.contributor.author | García-García, F. Javier | |
dc.contributor.author | Álvarez, Mayra G. | |
dc.contributor.author | Medina, Francesc | |
dc.contributor.author | Dafinov, Anton | |
dc.date.accessioned | 2024-01-29T10:01:57Z | |
dc.date.available | 2024-01-29T10:01:57Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 0897-4756 | |
dc.identifier.uri | http://hdl.handle.net/10366/154842 | |
dc.description.abstract | [EN]A key step in creating efficient and long-lasting catalysts is understanding their deactivation mechanism(s). On this basis, the behavior of a series of Pd/corundum materials during several hydrogen adsorption/desorption cycles was studied using temperature-programmed desorption coupled with mass spectrometry and aberration-corrected transmission electron microscopy. The materials, prepared by impregnation and by sputtering, presented uniform well-dispersed Pd nanoparticles. In addition, single atoms and small clusters of Pd were only detected in the materials prepared by impregnation. Upon exposure to hydrogen, the Pd nanoparticles smaller than 2 nm and the single atoms did not present any change, while the larger ones presented a core–shell morphology, where the core was Pd and the shell was PdHx. The results suggest that the long-term activity of the materials prepared by impregnation can be attributed solely to the presence of small clusters and single atoms of Pd. | es_ES |
dc.language.iso | eng | es_ES |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | palladium | es_ES |
dc.subject | single atom | es_ES |
dc.subject | hydrogen | es_ES |
dc.subject | deactivation mechanism | es_ES |
dc.subject | nanoparticles | es_ES |
dc.subject | advanced oxidation processes | es_ES |
dc.title | Insights into Palladium Deactivation during Advanced Oxidation Processes | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publishversion | https://pubs.acs.org/doi/epdf/10.1021/acs.chemmater.2c01951 | es_ES |
dc.subject.unesco | 2303 Química Inorgánica | es_ES |
dc.identifier.doi | 10.1021/acs.chemmater.2c01951 | |
dc.relation.projectID | PID2021-124572OBC31 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.identifier.essn | 1520-5002 | |
dc.journal.title | Chemistry of Materials | es_ES |
dc.volume.number | 34 | es_ES |
dc.issue.number | 19 | es_ES |
dc.page.initial | 8760 | es_ES |
dc.page.final | 8768 | es_ES |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | es_ES |