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本文用透射电子显微镜对Pd/Al_2O_3催化剂制备进行了研究。加表面活性剂和调节pH值,可促进钯海绵状结构分离,提高钯的分散度。浸渍方式,还原条件将影响催化剂钯粒子大小及其分布。对不同载体上钯粒子的状态也进行了比较。
In this paper, the preparation of Pd / Al 2 O 3 catalyst was studied by transmission electron microscopy. Adding surfactants and adjusting the pH value can promote the separation of palladium sponge-like structure and improve the dispersion of palladium. Impregnation mode, the reduction conditions will affect the catalyst palladium particle size and distribution. The state of palladium particles on different supports was also compared.