中文摘要：

以不同沉淀剂制备的CeO：龙m：复合氧化物为载体，采用等体积浸渍法制备了Cu／Mo／Ce02-ZrO2催化剂．研究结果表明，当Ce：Zr的摩尔比为0．65：0．35．Mo添加量为6％，Cu负载量为5％时，制得的Cu／Mo／CeO：_ZrO2对CO、C3H6。和NO的转化具有更好的催化活性，在该催化剂上，CO、C3H。和NO的7k分别为103℃、248℃和244℃T90分别为189℃、450℃和321℃．Mo的添加能够使催化剂形成稳定的立方晶相固溶体结构，并且使其颗粒更加细化，从而有利于Cu物种高度分散在催化剂表面，提高了催化剂的性能．

英文摘要：

The CeO2-ZrO2 composite support was prepared by different precipitators as the earrier. The Cu/Mo/CeO2-ZrO2 catalyst was prepared by incipient wetness impregnalion with them. The resuhs showed, the Cu/Mo/CeO2-ZrO2 catalyst with Ce：Zr molar ratio of 0.65：0.35, the content Mo of 6% and the content Cu of 5% showed the better catalytic performance. The light-off temperatures for CO, C3Ht, and NO were 103 ℃, 248 ℃ and 244 ℃ respectively. CO could be completely converted above 189 ℃, C3H6 could be completely converted above 450 ℃, and NO could be completely converted above 321 ℃. Mo was added to torm a stable cubic structure of the solid solution, and il makes the catalyst particles smaller. Highly dispersed CuO partieles were formed on the surface of catalyst aml improved the catalytic activity.