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Nanosized vanadium, tungsten and molybdenum oxide clusters grown in porous chitosan microspheres as promising hybrid materials for selective alcohol oxidation

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Nanosized vanadium, tungsten and molybdenum oxide clusters grown in porous chitosan microspheres as promising hybrid materials for selective alcohol oxidation

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dc.contributor.author El Kadib, Abdelkrim es_ES
dc.contributor.author Primo Arnau, Ana María es_ES
dc.contributor.author Molvinger, Karine es_ES
dc.contributor.author Bousmina, Mosto es_ES
dc.contributor.author Brunel, Daniel es_ES
dc.date.accessioned 2013-11-19T13:08:28Z
dc.date.issued 2011-07-04
dc.identifier.issn 0947-6539
dc.identifier.uri http://hdl.handle.net/10251/33744
dc.description.abstract The ability of chitosan biopolymer to coordinate vanadium, tungsten and molybdenum metallic species and to control their mineralisation growth provides a new family of surface-reactive organic-inorganic hybrid microspheres. Drying the resulting materials under supercritical conditions allowed the gel network dispersion to be retained, thereby leading to a macroporous catalyst with surface areas ranging from 253 to 278 m2 g-1. On account of the open framework structure of these microspheres, the redox species entangled within the fibrillar network of the polysaccharide aerogels were found to be active, selective and reusable catalysts for cinamylalcohol oxidations. es_ES
dc.description.sponsorship This work was supported by the Hassan II Academy of Science, Innovation and Research (Morocco). We are grateful to Dr. Claude Guillmon for XPS analysis and to Hassan Hafidi (IT Manager) for his technical assistance. en_EN
dc.format.extent 7 es_ES
dc.language Inglés es_ES
dc.publisher Wiley-VCH Verlag es_ES
dc.relation.ispartof Chemistry - A European Journal es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Alcohols es_ES
dc.subject Chitosan es_ES
dc.subject Nanostructures es_ES
dc.subject Organic-inorganic hybrid composites es_ES
dc.subject Oxidation es_ES
dc.title Nanosized vanadium, tungsten and molybdenum oxide clusters grown in porous chitosan microspheres as promising hybrid materials for selective alcohol oxidation es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1002/chem.201003740
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 El Kadib, A.; Primo Arnau, AM.; Molvinger, K.; Bousmina, M.; Brunel, D. (2011). Nanosized vanadium, tungsten and molybdenum oxide clusters grown in porous chitosan microspheres as promising hybrid materials for selective alcohol oxidation. Chemistry - A European Journal. 17:7940-7946. doi:10.1002/chem.201003740 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/chem.201003740 es_ES
dc.description.upvformatpinicio 7940 es_ES
dc.description.upvformatpfin 7946 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 17 es_ES
dc.relation.senia 218846
dc.contributor.funder Académie Hassan II des Sciences et Techniques es_ES
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dc.description.references When monitoring the degradation of the materials used in catalysis by thermogravimetric analysis (TGA)/mass spectroscopy no product attributed to the oxidation of the support was observed. es_ES
dc.description.references Chitosan has been shown to be effective for adsorption and removal of vanadium tungsten and molybdenum from aqueous solutions: es_ES
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dc.description.references In some cases the fast re‐deposition of the leached active species back onto the support can result in a misconception about the result. So in the absence of an exhaustive study on this phenomenon the following results have to be carefully interpreted. es_ES


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