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采用柠檬酸爆炸法合成了系列层状钙钛矿型复合氧化物Ｌａ４ＢａＣｕ５ － ｘＭｘＯ１３＋ λ（Ｍ＝ Ｍｎ，Ｃｏ； ｘ＝ ０ ～５） 催化剂． 用ＴＰＤ，ＴＰＲ 和化学分析法对催化剂进行了表征，考察了催化剂在ＣＯ还原ＮＯ 中的催化活性．结果表明，掺杂Ｍｎ，Ｃｏ 后催化剂中的活性氧含量及氧化还原性质发生了变化． 掺杂少量Ｍｎ，Ｃｏ 可使催化剂在ＣＯ 还原ＮＯ中的催化活性明显提高，且掺杂Ｃｏ 的样品比掺杂Ｍｎ 的样品活性提高更明显．这是由于ＣｕＭｎ 与ＣｕＣｏ 之间的协同作用不同导致的结果．
A series of layered perovskite oxides La4BaCu5 - xMxO13 + λ (M = Mn, Co; x = 0 ~ 5) were synthesized by citric acid explosion method. The catalysts were characterized by TPD, TPR and chemical analysis, and the catalytic activity of the catalyst in the reduction of NO by CO was investigated. The results show that the active oxygen content and the redox properties of the catalysts doped with Mn and Co have changed. Addition of a small amount of Mn and Co can obviously improve the catalytic activity of the catalyst in the reduction of NO by CO, and the activity of the sample doped with Co is more obviously enhanced than that of the sample doped with Mn. This is due to the different effects of Cu-Mn and Cu-Co.