高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (3): 414.

• 论文 • 上一篇    下一篇

La-Ba-Cu复合氧化物在催化消除NO反应中催化性能的研究

刘钰, 杨向光, 赵震, 吴越   

  1. 中国科学院长春应用化学研究所, 长春, 130022
  • 收稿日期:1996-10-24 出版日期:1998-03-24 发布日期:1998-03-24
  • 通讯作者: 吴越
  • 作者简介:刘钰,男,25岁,博士研究生.
  • 基金资助:

    国家自然科学基金、长春应用科学研究中心基金联合资助课题.

Studies on the Elimination of NO over the La-Ba-CU Mixed Oxide Catalysts with Perovskite Structure

LIU Yu, YANG Xiang-Guang, ZHAO Zhen, WU Yue   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022
  • Received:1996-10-24 Online:1998-03-24 Published:1998-03-24

摘要: 合成了具有钙钛石结构的复合氧化物YBa2Cu3O7、LaBa2Cu3O7、LaBaCu2O5、La2BaCu3O7和La4BaCu5O12.考察了它们对NO分解和NO+CO反应的催化性能.结合化学分析、XRD、TPD和TPR对催化剂的表征结果,探讨了该系列复合氧化物对NO分解和NO+CO反应的催化机理.

关键词: 钙钛石复合氧化物, NO消除, 氧空位

Abstract: The mixed oxides, including YBa2Cu3O7, LaBa2Cu3O7, LaBaCu2O5, La2BaCu3O7, La4BaCu5O12 with perovskite structure, were prepared. The catalysts were characterized by means of chemical analysis, XRD, TPD and TPR method. It was found that they were the active catalysts for the NO decomposition and NO reduction by CO. The existance of Cu3+ is an important factor to give the catalysts a high activity for the NOreduction by CO.

Key words: Mixed oxide with perovskite structure, NO elimination, Oxygen vacancy

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