Synthesis of mesoporous PrxZr1−xO2−δ solid solution with high thermal stability for catalytic soot oxidation

In the present work, for the first time, we successfully prepared a series of mesoporous PrxZr1−xO2−δ solid solutions, which are used as catalysts for soot combustion. The obtained mesoporous materials possess BET surface area up to 139 m2 g−1 under the optimal condition. The aged catalysts (800 °C for 3 h) own enhanced activity for soot oxidation, indicating that the obtained materials possess excellent thermal stability under high-temperature treatment.