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A Ce0.9Pr0.1O2 catalyst has been prepared using nitrates as metal precursors, which have been infiltrated into a polymethylmethacrylate colloidal crystal template and calcined at 500 °C. Its catalytic activity for CO oxidation (4.3 μmolCO s−1 gcatalyst−1 at 300 °C) is far superior compared to a reference catalyst prepared in the same way but without the template (1.4 μmolCO s−1 gcatalyst−1 at 300 °C),...
Ce0.64Zr0.27Nd0.09Oδ mixed oxides have been prepared by three different methods (nitrates calcination, coprecipitation and microemulsion), characterized by N2 adsorption, XRD, H2-TPR, Raman spectroscopy and XPS, and tested for soot combustion in NOx/O2. The catalyst prepared by microemulsion method is the most active one, which is related to its high surface area (147m2/g) and low crystallite size...
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