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dc.contributor.author | Cirujano, F. G. | es_ES |
dc.contributor.author | Llabrés i Xamena, Francesc Xavier | es_ES |
dc.date.accessioned | 2021-11-11T19:30:42Z | |
dc.date.available | 2021-11-11T19:30:42Z | |
dc.date.issued | 2020-06-18 | es_ES |
dc.identifier.issn | 1948-7185 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/176985 | |
dc.description.abstract | [EN] The Lewis/Bronsted acidity and catalytic properties of UiO-66-type metal-organic frameworks are studied in the context of tunable acid catalysts based on the presence of linker defects that create coordinatively unsaturated Zr4+ centers. Fourier transform infrared spectroscopy of adsorbed CO and direct pH measurements are employed to characterize hydrated and dehydrated UiO-66 containing different number of Zr4+ sites associated with defects. These sites can strongly polarize coordinated water molecules, which induces Bronsted acidity in the hydrated material. Upon dehydration of the solid, the coordinated water molecules are removed, and the underlying coordinatively unsaturated Zr4+ cations become exposed and available as Lewis acid sites. Herein we show, for various acid-catalyzed reactions, how it is possible to shift from a Bronsted acid to a Lewis acid catalyst by simply controlling the hydration degree of the solid. This control adds a new dimension to the design and engineering of MOFs for catalytic applications | es_ES |
dc.description.sponsorship | Financial support by the Spanish Government is acknowledged through projects MAT2017-82288-C2-1-P and the Severo Ochoa program (SEV-2016-0683) | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | American Chemical Society | es_ES |
dc.relation.ispartof | The Journal of Physical Chemistry Letters | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.title | Tuning the Catalytic Properties of UiO-66 Metal-Organic Frameworks: From Lewis to Defect-Induced Bronsted Acidity | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1021/acs.jpclett.0c00984 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-82288-C2-1-P/ES/MATERIALES HIBRIDOS MULTIFUNCIONALES BASADOS EN NANO-UNIDADES ESTRUCTURALES ACTIVAS/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//SEV-2016-0683//Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.description.bibliographicCitation | Cirujano, FG.; Llabrés I Xamena, FX. (2020). Tuning the Catalytic Properties of UiO-66 Metal-Organic Frameworks: From Lewis to Defect-Induced Bronsted Acidity. The Journal of Physical Chemistry Letters. 11(12):4879-4890. https://doi.org/10.1021/acs.jpclett.0c00984 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1021/acs.jpclett.0c00984 | es_ES |
dc.description.upvformatpinicio | 4879 | es_ES |
dc.description.upvformatpfin | 4890 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 11 | es_ES |
dc.description.issue | 12 | es_ES |
dc.identifier.pmid | 32496804 | es_ES |
dc.relation.pasarela | S\418393 | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |
dc.contributor.funder | Ministerio Ciencia, Innovación y Universidades | es_ES |