应用化学 ›› 1992, Vol. 0 ›› Issue (6): 21-25.

• 研究论文 • 上一篇    下一篇

在镍系钙钛矿(ABO3)型催化剂上的氨氧化 Ⅲ.焙烧温度对催化剂结构和活性的影响

高利珍, 于作龙, 吴越   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1991-10-24 修回日期:1992-04-06 出版日期:1992-12-10 发布日期:1992-12-10

STUDY ON THE PEROFSKITE-TYPE CATALYSTS(ABO3) OF NICKEL SYSTEM FOR AMMOXIDATION Ⅲ.

Gao Lizhen, Yu Zuolong, Wu Yue   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-10-24 Revised:1992-04-06 Published:1992-12-10 Online:1992-12-10

摘要: 本文探讨了焙烧温度对催化剂结构及氨氧化活性的影响。得出:La0.9Sr0.1NiO3-1在1223K后分解,生成具有K2NiF4结构的La2NiO4相,NiO相和LaNiO3相。催化活性相主要是具有钙钛矿结构的组分。最佳活性相在1273K形成。

关键词: La0.9Sr0.1NiO3, 氨氧化, 结构性能关系

Abstract: The correlations of the calcination temperature,crystal structure and catalytic activity of La0.9Sr0.1NiO3 for ammoxidation have been studied.When the calcination temperature is above 1223K, the perovskite structure of La0.9Sr0.1NiO3 is decomposed into three phases, i.e.La2NiO4, LaNiO3, and NiO. The LaNiO3 perovskite phase is the most active phase for ammoxidation.The catalyst calcinated at 1273K has the highest activity.

Key words: La0.9Sr0.1NiO3, ammoxidation, structure-property relation