Repositorio de producción científica de la Universidad de Sevilla

Role of ruthenium on the catalytic properties of CeZr and CeZrCo mixed oxides for glycerol steam reforming reaction toward H2 production

Opened Access Role of ruthenium on the catalytic properties of CeZr and CeZrCo mixed oxides for glycerol steam reforming reaction toward H2 production

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Martínez Tejada, Leidy Marcela
Araque, Marcia
Centeno Gallego, Miguel Ángel
Roger, Anne-Cécile
Departamento: Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 2015
Publicado en: Catalysis Today, 242, 80-90.
Tipo de documento: Artículo
Resumen: The effect of ruthenium on the physico-chemical properties of CeZr and CeZrCo mixed oxides for H2 production by glycerol steam reforming reaction has been studied. The combination of in situ Raman spectroscopy under both reductive and oxidative conditions, H2/O2 pulses and XRD, Raman, BET analysis, H2-TPR and TPD-TPO analyses contributed to the determination of the structural and textural properties, redox behavior, re-oxidation capacity and resistance to carbon deposition of the synthesized catalysts. The results show that the catalytic activity is improved by the (positive) cooperative and complementary effect between cobalt and ruthenium that favors the selectivity toward the steam reforming, selective to H2, with respect to the unselective thermal decomposition of glycerol. Ruthenium stabilizes the cobalt cations inserted in the fluorite structure preventing its rejection as Co3O4; and provides the necessary hydrogen to reduce Ce4+. The combination cobalt-ruthenium modifies positi...
[Ver más]
Cita: Martínez Tejada, L.M., Araque, M., Centeno Gallego, M.Á. y Roger, A. (2015). Role of ruthenium on the catalytic properties of CeZr and CeZrCo mixed oxides for glycerol steam reforming reaction toward H2 production. Catalysis Today, 242, 80-90.
Tamaño: 1.509Mb
Formato: PDF

URI: https://hdl.handle.net/11441/72377

DOI: 10.1016/j.cattod.2014.07.034

Ver versión del editor

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones