Colloidal gold immobilized on mesoporous silica as a highly active and selective catalyst for styrene epoxidation with H2O2
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Título: | Colloidal gold immobilized on mesoporous silica as a highly active and selective catalyst for styrene epoxidation with H2O2 |
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Autor/es: | Linares, Noemi | Canlas, C.P. | Garcia-Martinez, Javier | Pinnavaia, Thomas J. |
Grupo/s de investigación o GITE: | Laboratorio de Nanotecnología Molecular (NANOMOL) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Gold nanoparticles | Colloid immobilization | Epoxidation | Mesostructured silica |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 10-ene-2014 |
Editor: | Elsevier |
Cita bibliográfica: | Catalysis Communications. 2014, 44: 50-53. doi:10.1016/j.catcom.2013.10.004 |
Resumen: | Colloidal gold nanoparticles were synthesized by different procedures affording suspensions with two different mean sizes (2 and 5 nm). Au catalysts were prepared by sol immobilization onto several silica frameworks with different 2D and 3D mesoporosities. The catalysts were tested in styrene oxidation reactions showing excellent efficiency and selectivity. The effect of nanoparticle size and mesoporous framework on the physical and catalytic properties of the final materials was studied. The most selective catalyst was prepared from the 5 nm Au nanoparticles and the more interconnected silica framework (3D mesoporosity). |
Patrocinador/es: | The authors are grateful for the funding under project CTQ2011-28954-C02-01(02) from the SpanishMICINN. NL acknowledges the financial support from the FPI Program (ref. BES-2006-13056). |
URI: | http://hdl.handle.net/10045/37817 |
ISSN: | 1566-7367 (Print) | 1873-3905 (Online) |
DOI: | 10.1016/j.catcom.2013.10.004 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.catcom.2013.10.004 |
Aparece en las colecciones: | INV - NANOMOL - Artículos de Revistas |
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2014_Linares_etal_CatCom_final.pdf | Versión final (acceso restringido) | 775,05 kB | Adobe PDF | Abrir Solicitar una copia |
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