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dc.contributor.author | Serna Merino, Pedro Manuel | es_ES |
dc.contributor.author | Gates, Bruce C. | es_ES |
dc.date.accessioned | 2016-10-31T13:06:55Z | |
dc.date.available | 2016-10-31T13:06:55Z | |
dc.date.issued | 2013-12 | |
dc.identifier.issn | 0021-9517 | |
dc.identifier.uri | http://hdl.handle.net/10251/73003 | |
dc.description.abstract | [EN] Essentially molecular rhodium catalysts were made from Rh(C2R4)(2)(acetylacetonate) on zeolite HY and on MgO and characterized by infrared and X-ray absorption spectroscopies. The supported rhodium species anchored to the zeolite, initially in the form of Rh(C2H4)(2), selectively catalyzed ethene dimerization, typically at 298 K and 1 bar, but when the catalyst was poisoned by CO, or the support was changed to MgO or zeolite NaY, or the rhodium was converted into small clusters, the ethene underwent predominantly hydrogenation. The preciseness of the synthesis of the supported rhodium species facilitated determination of structure-catalyst performance relationships that led to a schematic representation of how the dimerization proceeds by a mechanism involving both the rhodium complexes and zeolite surface OH groups. The reaction is facilitated by H-2 and proceeds as one ethene molecule is activated by an isolated rhodium complex and another by a weakly acidic Si-OH-Al group. (C) 2013 Elsevier Inc. All rights reserved. | es_ES |
dc.description.sponsorship | The research was supported by the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement PIOF-GA-2009-253129 (P.S.) and by DOE Basic Energy Sciences (FG02-04ER15513). We thank the DOE Division of Materials Sciences for its role in the operation and development of beam line 4-1 at the Stanford Synchrotron Radiation Lightsource. We thank the beam line staff for valuable support. | en_EN |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Journal of Catalysis | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Catalysis by rhodium | es_ES |
dc.subject | Zeolite-supported catalysts | es_ES |
dc.subject | Carbon–carbon bond formation | es_ES |
dc.subject | Metal/acid cooperative mechanisms | es_ES |
dc.title | Zeolite- and MgO-supported rhodium complexes and rhodium clusters: Tuning catalytic properties to control carbon carbon vs. carbon hydrogen bond formation reactions of ethene in the presence of H2 | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.jcat.2013.07.005 | |
dc.relation.projectID | info:eu-repo/grantAgreement/DOE//FG02-04ER15513/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/253129/EU/Study of uniform supported metal complexes and metal clusters at atomic level for catalytic applications/ | |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química | es_ES |
dc.description.bibliographicCitation | Serna Merino, PM.; Gates, BC. (2013). Zeolite- and MgO-supported rhodium complexes and rhodium clusters: Tuning catalytic properties to control carbon carbon vs. carbon hydrogen bond formation reactions of ethene in the presence of H2. Journal of Catalysis. 308:201-212. https://doi.org/10.1016/j.jcat.2013.07.005 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.jcat.2013.07.005 | es_ES |
dc.description.upvformatpinicio | 201 | es_ES |
dc.description.upvformatpfin | 212 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 308 | es_ES |
dc.relation.senia | 259100 | es_ES |
dc.contributor.funder | U.S. Department of Energy | |
dc.contributor.funder | European Commission |