Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction
Structure-sensitive catalyzed reactions can be influenced by a number of parameters. So far, it has been established that the formation of Pd-C species is responsible for the behavior of Pd nanoparticles employed as catalysts in a butadiene partial hydrogenation reaction. In this study, we introduce...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/6/1099 |
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| author | Esther Asedegbega-Nieto Ana Iglesias-Juez Marco Di Michiel Marcos Fernandez-Garcia Inmaculada Rodriguez-Ramos Antonio Guerrero-Ruiz |
| author_facet | Esther Asedegbega-Nieto Ana Iglesias-Juez Marco Di Michiel Marcos Fernandez-Garcia Inmaculada Rodriguez-Ramos Antonio Guerrero-Ruiz |
| author_sort | Esther Asedegbega-Nieto |
| collection | DOAJ |
| description | Structure-sensitive catalyzed reactions can be influenced by a number of parameters. So far, it has been established that the formation of Pd-C species is responsible for the behavior of Pd nanoparticles employed as catalysts in a butadiene partial hydrogenation reaction. In this study, we introduce some experimental evidence indicating that subsurface Pd hydride species are governing the reactivity of this reaction. In particular, we detect that the extent of formation/decomposition of PdHx species is very sensitive to the Pd nanoparticle aggregate dimensions, and this finally controls the selectivity in this process. The main and direct methodology applied to determine this reaction mechanism step is time-resolved high-energy X-ray diffraction (HEXRD). |
| first_indexed | 2024-03-11T06:05:09Z |
| format | Article |
| id | doaj.art-69596a02d280422680ebc2cf4c5456cf |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T06:05:09Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-69596a02d280422680ebc2cf4c5456cf2023-11-17T13:01:32ZengMDPI AGNanomaterials2079-49912023-03-01136109910.3390/nano13061099Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation ReactionEsther Asedegbega-Nieto0Ana Iglesias-Juez1Marco Di Michiel2Marcos Fernandez-Garcia3Inmaculada Rodriguez-Ramos4Antonio Guerrero-Ruiz5Dpto. Química Inorgánica y Técnica, Facultad de Ciencias, UNED, Av. de Esparta s/n, 28232 Las Rozas, Madrid, SpainInstituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie No. 2, Cantoblanco, 28049 Madrid, SpainESRF—The European Synchrotron, 71 Avenue des Martyrs, 38000 Grenoble, FranceInstituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie No. 2, Cantoblanco, 28049 Madrid, SpainInstituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie No. 2, Cantoblanco, 28049 Madrid, SpainDpto. Química Inorgánica y Técnica, Facultad de Ciencias, UNED, Av. de Esparta s/n, 28232 Las Rozas, Madrid, SpainStructure-sensitive catalyzed reactions can be influenced by a number of parameters. So far, it has been established that the formation of Pd-C species is responsible for the behavior of Pd nanoparticles employed as catalysts in a butadiene partial hydrogenation reaction. In this study, we introduce some experimental evidence indicating that subsurface Pd hydride species are governing the reactivity of this reaction. In particular, we detect that the extent of formation/decomposition of PdHx species is very sensitive to the Pd nanoparticle aggregate dimensions, and this finally controls the selectivity in this process. The main and direct methodology applied to determine this reaction mechanism step is time-resolved high-energy X-ray diffraction (HEXRD).https://www.mdpi.com/2079-4991/13/6/1099palladium catalystssubsurface hydridebutadienepartial hydrogenationHEXRD |
| spellingShingle | Esther Asedegbega-Nieto Ana Iglesias-Juez Marco Di Michiel Marcos Fernandez-Garcia Inmaculada Rodriguez-Ramos Antonio Guerrero-Ruiz Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction Nanomaterials palladium catalysts subsurface hydride butadiene partial hydrogenation HEXRD |
| title | Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction |
| title_full | Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction |
| title_fullStr | Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction |
| title_full_unstemmed | Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction |
| title_short | Dynamics of Pd Subsurface Hydride Formation and Their Impact on the Selectivity Control for Selective Butadiene Hydrogenation Reaction |
| title_sort | dynamics of pd subsurface hydride formation and their impact on the selectivity control for selective butadiene hydrogenation reaction |
| topic | palladium catalysts subsurface hydride butadiene partial hydrogenation HEXRD |
| url | https://www.mdpi.com/2079-4991/13/6/1099 |
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