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Influence of the transition metal oxide presence on the CO Oxidation behaviour of Au/MOx/CeO2-Al2O3 systems (M=V or Co)

AutorReina, T.R. ; Álvarez Moreno, Andrea; Ivanova, Svetlana ; Odriozola, José Antonio ; Centeno, Miguel Ángel
Fecha de publicación2012
CitaciónCHEMCATCHEM 4: 512 (2012)
ResumenA series of V2O5- and Co3O4-modified ceria/alumina supports and their corresponding gold catalysts were synthesized and their catalytic activities evaluated in the CO oxidation reaction. V2O5-doped solids demonstrated a poor capacity to abate CO, even lower than that of the original ceria/alumina support, owing to the formation of CeVO4. XRD, Raman spectroscopy, and H2-temperature programmed reduction studies confirmed the presence of this stoichiometric compound, in which cerium was present as Ce3+ and its redox properties were A series of V2O5- and Co3O4-modified ceria/alumina supports and their corresponding gold catalysts were synthesized and their catalytic activities evaluated in the CO oxidation reaction. V2O5-doped solids demonstrated a poor capacity to abate CO, even lower than that of the original ceria/alumina support, owing to the formation of CeVO4. XRD, Raman spectroscopy, and H2-temperature programmed reduction studies confirmed the presence of this stoichiometric compound, in which cerium was present as Ce3+ and its redox properties were
URIhttp://hdl.handle.net/10261/98541
Identificadoresissn: 1867-3899
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