论文部分内容阅读
The mixed oxides, including LaBa-2Cu-3O-7, LaBaCu-2O-5, La-4BaCu-5O 12 with perovskite structure, were prepared. The catalysts were characterized by means of chemical analysis, XRD, H-2_TPR. It was found that their structures were layered ABO-3 perovskite structure and they were the active catalysts for the NO reduction by CO. The existance of Cu 3+ is an important factor to give the catalysts a high activity for the NO reduction by CO.