Abstract
Au–Pd supported on ceria–zirconia catalysts, with Au:Pd molar ratios in the 1:1–10:1 range, have been prepared using deposition precipitation of Au followed by impregnation with Pd. The resulting Au–Pd supported catalysts were activated by oxidation at 350, 450 and 700 °C. The oxidation at 700 °C led to the formation of large Au–Pd alloy nanoparticles showing lower catalytic activity for CO oxidation. The Au–Pd/Ce0.62Zr0.38O2 catalyst with the highest Au:Pd ratio, 10:1, exhibited the highest CO oxidation activity.
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Acknowledgments
This work has been supported by the Ministry of Science and Innovation of Spain/FEDER Program of the EU (Project: MAT 2013-40823-R, CSD2009-00013). J. J. Delgado, A. B. Hungría and X. Chen thank the program of “Ramón y Cajal” from Ministry of Science and Innovation of Spain.
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Olmos, C.M., Chinchilla, L.E., Delgado, J.J. et al. CO Oxidation over Bimetallic Au–Pd Supported on Ceria–Zirconia Catalysts: Effects of Oxidation Temperature and Au:Pd Molar Ratio. Catal Lett 146, 144–156 (2016). https://doi.org/10.1007/s10562-015-1641-1
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DOI: https://doi.org/10.1007/s10562-015-1641-1