Abstract
The catalytic activity of a Ce0.76Zr0.24O2 mixed oxide, calcined at different temperatures, for soot oxidation under NO x /O2 was correlated with the catalytic activity for NO2 production. The Ce0.76Zr0.24O2 mixed oxide samples were prepared by co-precipitation and calcination at different temperatures: 500–1000 °C. A satisfactory correlation between the total amount of NO2 desorbed after NO + O2 adsorption at 60 °C and the T50% for soot combustion was found. The NO x adsorption process was also explored by in situ DRIFTS.
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