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对２种ｎ－型半导体（ＳｎＯ２和ＴｉＯ２）的复合氧化物负载的氧化铜催化剂的ＣＯ氧化催化性能进行了研究．采用程序升温反应方法，得到ＣＯ转化率随反应温度的变化曲线，ＣＯ最低全转化温度越低，活性越好．考察了载体的不同制备方法如成胶方法、干燥方法、焙烧温度以及不同ＳｎＯ２∶ＴｉＯ２摩尔比对ＣＯ氧化性能的影响；此外，还考察了最佳活性组分的含量．结果表明：采用反滴方式成胶且在６００℃下进行焙烧得到的复合载体的性能较好，而载体的不同干燥方法对催化剂的活性影响不大；复合载体中ＳｎＯ２∶ＴｉＯ２摩尔比为４０％时负载的ＣｕＯ催化剂的活性最好．此外，ＣｕＯ含量为１０％～１５％时最佳
The CO oxidation catalytic performance of a composite oxide supported copper oxide catalyst for two n-type semiconductors (SnO2 and TiO2) was investigated. The temperature-programmed reaction method was used to get the curve of CO conversion with the reaction temperature. The lower the CO conversion temperature, the better the activity. The influence of different preparation methods of carrier such as gelling method, drying method, calcination temperature and molar ratio of SnO2: TiO2 on CO oxidation performance was investigated. In addition, the content of the best active component was also investigated. The results show that the performance of the composite carrier prepared by the reverse dropping method and calcined at 600 ℃ is good, while the different drying methods have little effect on the activity of the catalyst. The molar ratio of SnO2: TiO2 in the composite carrier is 40% When the load of CuO catalyst activity best. In addition, the best CuO content of 10% to 15%