用色谱－微反流动法技术，考察了ＣｕＯ催化剂对ＣＯ的性及添加ＣｅＯ２对催化活性的影响；并运用ＸＲＤ、ＴＰＲ和ＸＰＳ技术，研究了催化剂的物相结构和还原特性．实验结果表明，ＣｅＯ２的添加增加了ＣｕＯ的分散性，使ＣｕＯ的特征衍射峰消失，从而改善了催化剂的氧化活性．另外，当催化剂ＣｅＯ２含量低时，推测ＣｕＯ主要以Ｃｕ２＋、Ｏ２－的形式存在；而ＣｅＯ２的负载量高时，ＣｕＯ主要以Ｃｕ２＋、Ｃｕ＋、Ｏ２－的形式存在 The effects of CuO catalyst on the properties of CO and the addition of CeO2 on the catalytic activity were investigated by means of chromatographic-micro-reverse flow method. The phase structure and reduction properties of the catalyst were investigated by XRD, TPR and XPS techniques. The experimental results show that the addition of CeO2 increases the dispersibility of CuO, vanishes the characteristic diffraction peak of CuO, and improves the oxidation activity of the catalyst. In addition, when the content of catalyst CeO2 is low, it is speculated that CuO mainly exists in the form of Cu2 + and O2-. When the loading of CeO2 is high, CuO mainly exists in the form of Cu2 +, Cu + and O2-