Effect of high temperature pretreatment on the thermal resis

发布时间：2024-02-03 04:51

　　Fresh Pd/CeO₂/Al₂O₃ close coupled catalyst was prepared by the stepwise impregnation method and calcined at 550 °C for 3 h, which was then pretreated at 700, 800, and 900 °C for 3 h, respectively. Finally, these pretreated catalysts were aged at 1000 °C for 3 h to study their anti-aging properties. The catalytic activities of the catalysts were investigated detailedly, and the results showed that the catalyst pretreated at 800 °C before aging treatment possessed ...

【文章页数】：9 页

【文章目录】：
1 Experimental
    1.1 Synthesis of Ce O2-Al2O3composites
    1.2 Catalyst preparation
    1.3 Catalytic activity tests
    1.4 Methods
2 Results and discussion
    2.1 Catalytic performances
    2.2 Textural properties
    2.3 TEM results
    2.4 XPS studies
    2.5 TPR results
3 Conclusions



本文编号：3893746