Nafria, R.; Ramirez De La Piscina, P.; Homs, N.; Ramon Morante, J.; Cabot, A.; Díaz Morales, UM.; Corma Canós, A. (2013). Embedding catalytic nanoparticles inside mesoporous structures with controlled porosity: Au@TiO2. Journal of Materials Chemistry. 1(45):14170-14176. https://doi.org/10.1039/c3ta13346j
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/66100
Title:
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Embedding catalytic nanoparticles inside mesoporous structures with controlled porosity: Au@TiO2
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Author:
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Nafria, Raquel
Ramirez de la Piscina, Pilar
Homs, Narcis
Ramon Morante, Joan
Cabot, Andreu
Díaz Morales, Urbano Manuel
Corma Canós, Avelino
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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
Universitat Politècnica de València. Departamento de Química - Departament de Química
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Issued date:
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Abstract:
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The ability to produce catalytic nanoparticles with controlled properties is key to developing and producing heterogeneous catalysts with optimized activity and selectivity. No less important is to maximize the nanoparticle ...[+]
The ability to produce catalytic nanoparticles with controlled properties is key to developing and producing heterogeneous catalysts with optimized activity and selectivity. No less important is to maximize the nanoparticle dispersion over high area supports maintaining their optimized properties. Here we detail a general procedure to produce heterogeneous catalysts containing a large surface area mesoporous support and highly dispersed catalytic nanoparticles with controlled properties. We exemplify the developed method using colloidal gold nanocrystals as the catalytically active phase and titanium oxide as the paradigmatic support. Our synthetic strategy is based on the growth of an inorganic organic hybrid mesoporous material from the surface of the colloidal nanocrystals. A variety of organic spacers allows tuning the final porosity of the support. The good accessibility of the active catalytic sites in these materials is demonstrated by high CO oxidation conversion values.
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Subjects:
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Coated Gold Nanoparticles
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Surface-Area
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Co Oxidation
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Supported Gold
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Porous Silica
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Sba-15 Silica
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Nanocrystals
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Au/Tio2
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Sio2
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Spectroscopy
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Journal of Materials Chemistry. (issn:
0959-9428
)
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DOI:
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10.1039/c3ta13346j
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Publisher:
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Royal Society of Chemistry
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Publisher version:
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http://dx.doi.org/10.1039/c3ta13346j
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Project ID:
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info:eu-repo/grantAgreement/MICINN//CSD2009-00050/ES/Desarrollo de catalizadores más eficientes para el diseño de procesos químicos sostenibles y produccion limpia de energia/
info:eu-repo/grantAgreement/MICINN//MAT2011-29020-C02-01/ES/CATALIZADORES HIBRIDOS MULTIFUNCIONALES BASADOS EN UNIDADES ESTRUCTURALES ORGANICAS-INORGANICAS UTILIZADOS EN REACCIONES CASCADA/
info:eu-repo/grantAgreement/MINECO//SEV-2012-0267/
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Thanks:
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The research was supported by the European Regional Development Funds and the Spanish MICINN projects CSD2009-00050, MAT2011-29020-C02-01 and Severo Ochoa Excellence Program SEV-2012-0267.
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Type:
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Artículo
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