Artículo
Effect of thermal treatments on the catalytic behaviour in the CO preferential oxidation of a CuO-CeO2-ZrO2 catalyst with a flower-like morphology
Autor/es | Moretti, Elisa
Storaro, Loretta Talon, Aldo Lenarda, Maurizio Riello, Piero Frattini, Romana Martínez de Yuso, María del Valle Jiménez López, Antonio Rodríguez Castellón, Enrique Ternero Fernández, Fátima Caballero Martínez, Alfonso Holgado Vázquez, Juan Pedro |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte |
Fecha de publicación | 2011 |
Fecha de depósito | 2019-02-11 |
Publicado en |
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Resumen | A Ce-Zr-Cu oxide system with a flower-like morphology was prepared by a slow co-precipitation method in the absence of any structure directing agent. Four portions of the oxide were thermally treated at four different ... A Ce-Zr-Cu oxide system with a flower-like morphology was prepared by a slow co-precipitation method in the absence of any structure directing agent. Four portions of the oxide were thermally treated at four different temperatures (350°C, 450°C, 550°C, 650°C). The resulting materials samples were characterized by quantitative XRD, adsorption-desorption of N2 at-196°C, SEM and TEM microscopy, -H2-TPR, XPS and Operando-XANES. All samples were tested in the preferential CO oxidation (CO-PROX) in the 40-190°C temperature range. Thermal treatments were found to induce slight structural changes without altering the starting morphology of the samples. The samples treated at higher temperature 550-650°C showed a quite interesting CO-PROX activity and selectivity in a temperature range suitable for a practical use within the FEMFC technology. |
Cita | Moretti, E., Storaro, L., Talon, A., Lenarda, M., Riello, P., Frattini, R.,...,Holgado Vázquez, J.P. (2011). Effect of thermal treatments on the catalytic behaviour in the CO preferential oxidation of a CuO-CeO2-ZrO2 catalyst with a flower-like morphology. Applied Catalysis B: Environmental, 102, 627-637. |
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