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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 |