高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1119.

• 研究简报 • 上一篇    下一篇

CaO/La2O3催化剂电导性质与催化性质的研究

纪敏1, 毕颖丽1, 甄开吉1, 魏诠2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 吉林大学分析测试中心, 长春, 130023
  • 收稿日期:1994-08-30 修回日期:1995-02-28 出版日期:1995-07-24 发布日期:1995-07-24
  • 通讯作者: 纪敏,女,25岁,博士研究生.
  • 作者简介:纪敏,女,25岁,博士研究生.
  • 基金资助:

    国家自然科学基金

Studies on the Conduction and Catalytic Activity of CaO/La2O3Catalysts

JI Min1, BI Ying-Li1, ZHEN Kai-Ji1, WEI Quan2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Centre of Analysis and Measurement, Jilin University, Changchun, 130023
  • Received:1994-08-30 Revised:1995-02-28 Online:1995-07-24 Published:1995-07-24

PDF (PC)

摘要： 碱土金属氧化物及稀土金属氧化物对甲烷氧化偶联(OCM)均有较好的催化活性,前者具有较强的碱性,后者具有较好的稳定性,而且是产生甲基自由基的活性材料。

关键词: 稀土, 甲烷氧化偶联, La2O3催化剂

Abstract: The C2selectivity of catalyst La2O3for oxidative coupling of methane may be enhanced by doping a small amount of CaO. The studying results by using some experimental techniques, such as determination of ionic conductivity, determination of lattice parameters, Raman spectroscopy and XPS of the catalysts indicated that part of La3+ions was substituted by Ca2+ion(≤3 mol%) in La2O3lattice and C2selectivity in OCM reaction was increased due to the formation of O-ions.

Key words: Rare earth, Oxidative coupling of methane, La2O3catalysts

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