Oxygen-Nonstoichiometric YBaCo4O7+δ as a Catalyst in H2O2 Oxidation of Cyclohexene
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Título: | Oxygen-Nonstoichiometric YBaCo4O7+δ as a Catalyst in H2O2 Oxidation of Cyclohexene |
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Autor/es: | Parkkima, Outi | Silvestre Albero, Ana | Silvestre-Albero, Joaquín | Karppinen, Maarit |
Grupo/s de investigación o GITE: | Materiales Avanzados |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Nonstoichiometric oxide | Catalyst | Hydrocarbon oxidation | H2O2 oxidant |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | feb-2015 |
Editor: | Springer Science+Business Media New York |
Cita bibliográfica: | Catalysis Letters. 2015, 145(2): 576-582. doi:10.1007/s10562-014-1408-0 |
Resumen: | Here we present oxygen-nonstoichiometric transition metal oxides as highly prominent candidates to catalyze the industrially important oxidation reactions of hydrocarbons when hydrogen peroxide is employed as an environmentally benign oxidant. The proof-of-concept data are revealed for the complex cobalt oxide, YBaCo4O7+δ (0 < δ < 1.5), in the oxidation process of cyclohexene. In the 2-h reaction experiments YBaCo4O7+δ was found to be significantly more active (>60 % conversion) than the commercial TiO2 catalyst (<20 %) even though its surface area was less than one tenth of that of TiO2. In the 7-h experiments with YBaCo4O7+δ, 100 % conversion of cyclohexene was achieved. Immersion calorimetry measurements showed that the high catalytic activity may be ascribed to the exceptional ability of YBaCo4O7+δ to dissociate H2O2 and release active oxygen to the oxidation reaction. |
Patrocinador/es: | This work was supported by Academy of Finland (No. 255562) and Generalitat Valenciana (PROMETEO/2009/002). |
URI: | http://hdl.handle.net/10045/57824 |
ISSN: | 1011-372X (Print) | 1572-879X (Online) |
DOI: | 10.1007/s10562-014-1408-0 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © Springer Science+Business Media New York 2014. The final publication is available at Springer via http://dx.doi.org/10.1007/s10562-014-1408-0 |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1007/s10562-014-1408-0 |
Aparece en las colecciones: | INV - LMA - Artículos de Revistas |
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Archivo | Descripción | Tamaño | Formato | |
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2015_Parkkima_etal_CatalLett_final.pdf | Versión final (acceso restringido) | 609,12 kB | Adobe PDF | Abrir Solicitar una copia |
2015_Parkkima_etal_CatalLett_rev.pdf | Versión revisada (acceso abierto) | 306,38 kB | Adobe PDF | Abrir Vista previa |
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