Dhakshinamoorthy, A.; Alvaro Rodríguez, MM.; Hwang, YK.; Seo, Y.; Corma Canós, A.; García Gómez, H. (2011). Intracrystalline diffusion in metal organic framework during heterogeneous catalisys: Influence of particle size on the activity of MIL-100 (Fe) for oxidation reaction. Dalton Transactions. 40(40):10719-10724. https://doi.org/10.1039/c1dt10826c
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/105404
Título:
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Intracrystalline diffusion in metal organic framework during heterogeneous catalisys: Influence of particle size on the activity of MIL-100 (Fe) for oxidation reaction
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Autor:
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Dhakshinamoorthy, Amarajothi
Alvaro Rodríguez, Maria Mercedes
Hwang, Young Kyu
Seo, You-Kyong
Corma Canós, Avelino
García Gómez, Hermenegildo
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Entidad UPV:
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Universitat Politècnica de València. Departamento de Química - Departament de Química
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Fecha difusión:
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Resumen:
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[EN] Three MIL-100 (Fe) samples differing in average crystal size (from 60-70 to >400 nm) have been synthesized by microwave heating using three HF/Fe 3+ ratios. Oxidation of diphenylmethane with tert-butylhydroperoxide ...[+]
[EN] Three MIL-100 (Fe) samples differing in average crystal size (from 60-70 to >400 nm) have been synthesized by microwave heating using three HF/Fe 3+ ratios. Oxidation of diphenylmethane with tert-butylhydroperoxide (TBHP) and thiophenol with oxygen are catalyzed by three MIL-100 (Fe) samples with similar reaction rates regardless of its average particle size. In contrast, the activity of the three MIL-100 (Fe) samples for the oxidation of bulky triphenylmethane by TBHP largely depends on the average crystal size of the sample: the smaller the average particle size, the larger the initial reaction rate of triphenylmethane oxidation. These results show that diffusion limitation takes place on MOF catalysis depending on the substrate size and provides indirect evidence that these reactions take place inside the intracrystalline space of the porous catalysts. © 2011 The Royal Society of Chemistry.
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Palabras clave:
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Average particle size
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Crystal size
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Diffusion limitations
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Diphenylmethane
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Intracrystalline diffusion
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Intracrystalline space
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Oxidation reactions
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Porous catalysts
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Substrate sizes
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Tert-butylhydroperoxide
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Thiophenols
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Grain size and shape
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Organometallics
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Oxidation
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Particle size
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Reaction rates
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Catalysis
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benzhydryl derivative
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Ferric ion
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Metal
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Organic compound
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Oxygen
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Phenol derivative
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Tert butyl hydroperoxide
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Thiol derivative
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Thiophenol
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Article
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Chemistry
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diffusion
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oxidation reduction reaction
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synthesis
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Benzhydryl Compounds
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Ferric Compounds
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Metals
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Organic Chemicals
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Oxidation-Reduction
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Phenols
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Sulfhydryl Compounds
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Derechos de uso:
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Cerrado |
Fuente:
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Dalton Transactions. (issn:
1477-9226
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DOI:
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10.1039/c1dt10826c
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Editorial:
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ROYAL SOC CHEMISTRY
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Versión del editor:
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http://doi.org/10.1039/c1dt10826c
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Código del Proyecto:
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info:eu-repo/grantAgreement/MICINN//CTQ2010-18671/ES/APLICACION DE SOLIDOS RETICULARES METAL-ORGANICO MODIFICADOS COMO CATALIZADORES HETEROGENEOS EN PROCESOS DE OXIDACION AEROBICA Y EN REACCIONES PROMOVIDAS POR ACIDOS DE LEWIS/
Ministerio de Economía, Industria y Competitividad/CTQ2009--11587
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Agradecimientos:
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Financial support by the Spanish DGI (CTQ2009-11587 and CTQ2010-18671 and Consolider MULTICAT) is gratefully acknowledged. Prof. Jong-San Chang and his group are thanked for providing us with sufficient quantities of the ...[+]
Financial support by the Spanish DGI (CTQ2009-11587 and CTQ2010-18671 and Consolider MULTICAT) is gratefully acknowledged. Prof. Jong-San Chang and his group are thanked for providing us with sufficient quantities of the three MIL-100 (Fe) samples. Korean researchers acknowledge the financial support of KICOS and KRICT for the international collaboration program.
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Tipo:
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Artículo
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