Improved Intrinsic Activity of Ce0.5Pr0.5O2 for Soot Combustion by Vacuum/Freeze-Drying

Vacuum-drying and freeze-drying were adopted to improve the catalytic activity of Ce 0.5 Pr O 2 for soot combustion. The specific surface area pore volume as-prepared greatly increased compared counterpart using common drying method. Furthermore, redox performance oxidation ability enhanced, as demonstrated by H -TPR soot-TPR. Thus, lower combustion temperatures higher intrinsic obtained. This work that simply changing process precipitates can be served a paradigm structure performance.