高等学校化学学报

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (7): 634.

• 研究论文 • 上一篇    下一篇

含稀土复合氧化物催化剂的催化活性和晶体结构

于敏, 林培琰   

  1. 中国科学技术大学近代化学系
  • 收稿日期:1985-03-08 出版日期:1986-07-24 发布日期:1986-07-24
  • 基金资助:

    中国科学院科学基金

The Crystal Structure and Catalytic Activity of a Series of Complex Oxide Catalysts

Yu Min, Lin Peiyan   

  1. Department of Molern Chemistry, China University of Science and Technology, Hefei
  • Received:1985-03-08 Online:1986-07-24 Published:1986-07-24

PDF (PC)

被引次数

2

摘要： 本文研究了Ln0.7Sr0.3MnO3(Ln为稀土)系列催化剂上CO和C2H6完全氧化的活性规律。对于不同稀土Ln的取代物,其催化剂的晶体结构差别很大,有的呈正交的钙钛矿晶型,有的呈三方的钙钛矿晶型,还有的不是单一晶型的钙铁矿。实验中发现它们对于CO氧化和对C2H6氧化的活性不同。从CO氧化和C2H6氧化催化反应机理的不同,解释了这一现象。

Abstract: Ascries of complex oxide catalysts In0.7Sr0.3MnO3 were investigated (Ln=La,Ce,Pr,Nd,Sm,Gd,Tb,Dy,Ho,Er).The crystal structures of these catalysts were determined by X-ray diffraction.Some of them are the single crystals,some of them are varied pcrovskite crystals,the others are not perovskite crystals.The catalytic activities of these catalysts are very different for oxidation of COand C2H6.It was explained that the mechanism of oxidation of COand C2H6 is different,and the effect of surface area and dimension of crystal cell are different.

TrendMD: