物理化学学报 >> 1995, Vol. 11 >> Issue (02): 175-179.doi: 10.3866/PKU.WHXB19950216

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利用Eu3+荧光特性研究CaO-La2O3催化剂结构

纪敏, 毕颖丽, 甄开吉, 徐立羽华, 魏诠   

  1. 吉林大学化学系|吉林大学测试中心|长春 130023
  • 收稿日期:1994-01-15 修回日期:1994-04-25 发布日期:1995-02-15
  • 通讯作者: 纪敏

The Study on Structures of CaO-La2O3 Catalysts by Fluorescence Emission of Eu3+

Ji Min, Bi Ying-Li, Zhen Kai-Ji, Xu Yu-Hua, Wei Quan   

  1. Department of Chemistry,Jilin University,Changchun 130023|The Chentre of Analysis and Testing,Jilin University,Changchun 130023
  • Received:1994-01-15 Revised:1994-04-25 Published:1995-02-15
  • Contact: Ji Min

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关键词: 稀土, 荧光, 甲烷氧化偶联

Abstract:

The C2 selectivity of catalyst La2O3 in oxidative coupling of methane may be increased by doping small amount of CaO. Some experimental techniques were adopted such as measurement of fluorescence emission of Eu3+ doped into La2O3, determinations of the lattice parameters and XPS of the catalysts. The doping of CaO results in an increase in ambient symmetry of La3+ and in the concentration for creating oxygen ion vacancies in La2O3.

Key words: Rere earth, Fluorescence, Oxidative coupling of methane