以Ce0 .8Zr0 .2 O2 复合氧化物为载体 ,采用共浸渍法配制了一系列PdO CuO/Ce0 .8Zr0 .2 O2 双组分催化剂 ,选择NO CO反应为模型反应 ,考察了催化剂的还原活性 .结果表明 ,不同配比的PdO CuO双组分催化剂的NO还原活性均要优于单组分的PdO和CuO催化剂 A series of PdO CuO / Ce0.8Zr0.2O2 two-component catalysts were prepared by co-impregnation method using Ce0.8Zr0.2O2 composite oxide as carrier. The NO-CO reaction was chosen as the model reaction and the reduction activity of the catalyst was investigated. The results showed that the NO reduction activity of PdO CuO two-component catalysts with different ratios were better than that of single-component PdO and CuO catalysts