High surface area powders, La_0.9Sr_0.1CoO₃ (LSCO), were prepared by a hard template method with a template of SBA-15. In the preparation process, the solvent was ethanol, the mixture of ethanol and water, and water, respectively. Characterizations were performed to understand the properties of the catalysts. When the solvent is a mixture of ethanol and water, the prepared LSCO has the most easily extracted surface adsorbed oxygen in the H₂ atmosphere, exhibiting the best light-off performances for CO oxidation. However, the LSCO prepared in ethanol solvent has the best lattice oxygen mobility, resulting in the best light-off performance for C₃H₆ oxidation. Moreover, the LSCO prepared in ethanol also shows the best catalytic activity for both CO and C₃H₆ oxidation under the conditions of simulated diesel exhaust. Furthermore, Pd was impregnated on the LSCO, which was prepared by a sol-gel method and a hard template method, separately; the later one shows higher CO and C₃H₆ catalytic oxidation activity.

通过具有SBA-15模板的硬模板方法制备高表面积粉末La _0.9 Sr _0.1 CoO ₃（LSCO）。在制备过程中，溶剂分别为乙醇，乙醇和水的混合物以及水。进行表征以了解催化剂的性质。当溶剂为乙醇和水的混合物时，制得的LSCO在H ₂气氛中具有最容易提取的表面吸附氧，对CO氧化表现出最佳的起燃性能。然而，在乙醇溶剂中制备的LSCO具有最佳的晶格氧迁移率，因此对于C ₃ H _6而言具有最佳的起燃性能。氧化。此外，在模拟柴油机排气条件下，乙醇中制备的LSCO对CO和C ₃ H _6的氧化也显示出最佳的催化活性。另外，将Pd分别浸渍在通过溶胶-凝胶法和硬模板法制备的LSCO上。后者显示出较高的CO和C ₃ H ₆催化氧化活性。