应用化学 ›› 1995, Vol. 0 ›› Issue (5): 54-57.

• 研究论文 • 上一篇    下一篇

La-Th-O系催化剂的结构与甲烷氧化偶联催化性能的关系

吴波, 远松月, 于作龙   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1994-12-13 修回日期:1995-06-22 出版日期:1995-10-10 发布日期:1995-10-10
  • 基金资助:
    国家自然科学基金资助项目

Relationship Between Structure of LaxTh1-xO2-δMixed Oxide Catalysts and Catalytic Activity for Methane Oxidative Coupling

Wu Bo, Yuan Songyue, Yu Zuolong   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-12-13 Revised:1995-06-22 Published:1995-10-10 Online:1995-10-10

摘要: 研究了La-Th-O二元氧化物的组成、结构及其对甲烷氧化偶联反应催化性能的影响;用XRD、IR、XPS、SEM等方法对催化剂进行表征.La-Th-O系列催化剂随La/Th原子比的变化,可生成LaxTh1-xO2-δ固溶体.具有萤石结构的LaxTh1-xO2-δ是甲烷氢化偶联反应的主要活性相.

关键词: 甲烷, 氧化偶联, 催化剂, 镧钍氧化物

Abstract: The composition a nd structure of La-Th-O mixed oxides as well as their catalyticactivity for methane oxidative coupling have been studied by means of XRD,XPS and IR.The results indicated that the solid solution of LaxTh1-xO2-δ with the fluorite structure wasformed in the range 0≤x≤0.6,and it was the main active phase for oxidative coupling of methane.

Key words: methane, oxidative coupling, catalyst, lanthanum thorium oxide