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Au@MOF-5 and Au/MOx@MOF-5 (M = Zn, Ti; x = 1, 2): Preparation and Microstructural Characterisation

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Au@MOF-5 and Au/MOx@MOF-5 (M = Zn, Ti; x = 1, 2): Preparation and Microstructural Characterisation

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dc.contributor.author Müller, Maike es_ES
dc.contributor.author Stuart, Turner es_ES
dc.contributor.author Lebedev, Oleg, I. es_ES
dc.contributor.author Wang, Yuemin es_ES
dc.contributor.author Van Tendeloo, Gustaaf es_ES
dc.contributor.author Fischer, Roland A. es_ES
dc.date.accessioned 2015-04-29T07:24:41Z
dc.date.issued 2011
dc.identifier.issn 1434-1948
dc.identifier.uri http://hdl.handle.net/10251/49425
dc.description.abstract [EN] The Zn-carboxylate-based porous coordination polymer MOF-5 [Zn4O(bdc)(3)] and the metal oxide loaded materials ZnO@MOF-5 and TiO2@MOF-5 were loaded in a second step with the precursor [ClAuCO] to yield intermediate materials denoted as [ClAuCO]@MOF-5, [ClAuCO]/ZnO@MOF-5 and [ClAuCO]/TiO2@MOF-5. These composites were decomposed to Au@MOF-5, Au/ZnO@MOF-5 and Au/TiO2@MOF5 under hydrogen at 100 degrees C. The nanoparticle-loaded hybrid materials were characterised by powder X-ray diffraction (PXRD), IR spectroscopy, X-ray photoelectron spectroscopy (XPS) and N-2 sorption measurements, which reveal an intact MOF-5 structure that maintains a high specific surface area. For Au@MOF-5, crystalline Au nanoparticles were distributed over the MOF matrix in a homogeneous fashion with a size of ca. 1-3 nm, evidenced by high resolution transmission electron microscopy. In the case of Au/ZnO@MOF-5, the Au and metal oxide particles of a few nm in size were coexistent in a given volume of the MOF-5 matrix and were not separated in different crystalline MOF particles. For the TiO2 loaded materials the oxide is preferentially located near the outer surface of the MOF particles, leading to an increase of larger exterior Au particles in comparison to very small interior Au particles as observed for the other materials. Au@MOF-5, Au/ZnO@MOF-5 and Au/TiO2@MOF-5 were tested in liquid-phase oxidation of alcohols. Preliminary results show a high activity for the Au loaded materials in this reaction. This observation is attributed to the microstructure of the composites with very small Au particles distributed homogeneously over the MOF matrix. es_ES
dc.description.sponsorship This work was supported by the Deutsche Forschungsgemeinschaft (DFG) (Research Centre "Metal Support Interaction in Heterogeneous Catalysis", SFB-558). M. M. is grateful to the Ruhr-University Research School for supporting her doctoral thesis and as well to the Evangelisches Studienwerk e. V., Villigst for a stipend. S. T. gratefully acknowledges financial support from the Fund for Scientific Research Flanders (FWO). The authors acknowledge support from the European Union (Framework 6 program under a contract from an Integrated Infrastructure Initiative, reference number 026019 ESTEEM). The authors would also like to thank M. Lieb and S. Bendix for valuable help with GC-MS analysis.
dc.language Español es_ES
dc.publisher Wiley-VCH Verlag es_ES
dc.relation.ispartof European Journal of Inorganic Chemistry es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Metal-organic frameworks es_ES
dc.subject Host-guest systems es_ES
dc.subject Nanoparticles es_ES
dc.subject Catalysts es_ES
dc.subject Gold es_ES
dc.title Au@MOF-5 and Au/MOx@MOF-5 (M = Zn, Ti; x = 1, 2): Preparation and Microstructural Characterisation es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1002/ejic.201001297
dc.relation.projectID info:eu-repo/grantAgreement/DFG//SFB-558/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP6/26019/EU/Distributed European Infrastructure of Advanced Electron Microscopy for Nanoscience/ESTEEM/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.description.bibliographicCitation Müller, M.; Stuart, T.; Lebedev, OI.; Wang, Y.; Van Tendeloo, G.; Fischer, RA. (2011). Au@MOF-5 and Au/MOx@MOF-5 (M = Zn, Ti; x = 1, 2): Preparation and Microstructural Characterisation. European Journal of Inorganic Chemistry. 12:1876-1887. https://doi.org/10.1002/ejic.201001297 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/ejic.201001297 es_ES
dc.description.upvformatpinicio 1876 es_ES
dc.description.upvformatpfin 1887 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.relation.senia 208985
dc.identifier.eissn 1099-0682
dc.contributor.funder European Commission
dc.contributor.funder Deutsche Forschungsgemeinschaft


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