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
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/33744
Title:
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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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Author:
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El Kadib, Abdelkrim
Primo Arnau, Ana María
Molvinger, Karine
Bousmina, Mosto
Brunel, Daniel
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
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Issued date:
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Abstract:
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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. ...[+]
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.
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Subjects:
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Alcohols
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Chitosan
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Nanostructures
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Organic-inorganic hybrid composites
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Oxidation
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Copyrigths:
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Cerrado |
Source:
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Chemistry - A European Journal. (issn:
0947-6539
)
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DOI:
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10.1002/chem.201003740
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Publisher:
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Wiley-VCH Verlag
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Publisher version:
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http://dx.doi.org/10.1002/chem.201003740
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Project ID:
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Hassan II Academy of Science, Innovation and Research (Morocco)
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Thanks:
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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.
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Type:
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Artículo
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