本文采用共沉淀法制备了Cu-Ce-La复合氧化物催化剂,采用XRD、BET、TPR对所合成样品进行表证,并考察了其对变换反应的催化活性。以4.0mol/L的NaOH为沉淀剂所制备的Cu-Ce-La复合氧化物催化剂具有良好的活性和热稳定性。La3+和Ce4+以铜离子的部分取代形成了稳定的共熔体和强的协同效应是其活性和热稳定性提高的主要原因。NaOH沉淀剂的浓度是决定所合成催化剂介孔结构大小的主要因素,随着NaOH沉淀剂浓度由0.5提高到2.0mol/L,CuO与CeO2之间的协同效应大幅度提高。 In this paper, Cu-Ce-La composite oxide catalysts were prepared by coprecipitation method. The synthesized samples were characterized by XRD, BET and TPR. The catalytic activity of Cu-Ce-La composite catalysts was investigated. The Cu-Ce-La composite oxide catalyst prepared with 4.0 mol / L NaOH as precipitant has good activity and thermal stability. The formation of a stable eutectic and a strong synergistic effect by the partial substitution of copper ions with La3 + and Ce4 + are the main reasons for their increased activity and thermal stability. The concentration of NaOH precipitant is the main factor that determines the size of the mesoporous structure of the synthesized catalyst. As the concentration of NaOH precipitant increases from 0.5 to 2.0 mol / L, the synergistic effect between CuO and CeO2 greatly increases.