引用本文:
纪敏, 毕颖丽, 甄开吉, 徐立羽华, 魏诠. 利用Eu3+荧光特性研究CaO-La2O3催化剂结构[J]. 物理化学学报,
1995, 11(02): 175-179.
doi:
10.3866/PKU.WHXB19950216
Citation: Ji Min, Bi Ying-Li, Zhen Kai-Ji, Xu Yu-Hua, Wei Quan. The Study on Structures of CaO-La2O3 Catalysts by Fluorescence Emission of Eu3+[J]. Acta Physico-Chimica Sinica, 1995, 11(02): 175-179. doi: 10.3866/PKU.WHXB19950216
Citation: Ji Min, Bi Ying-Li, Zhen Kai-Ji, Xu Yu-Hua, Wei Quan. The Study on Structures of CaO-La2O3 Catalysts by Fluorescence Emission of Eu3+[J]. Acta Physico-Chimica Sinica, 1995, 11(02): 175-179. doi: 10.3866/PKU.WHXB19950216
English
The Study on Structures of CaO-La2O3 Catalysts by Fluorescence Emission of Eu3+
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.
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Key words:
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Rere earth
- / Fluorescence
- / Oxidative coupling of methane
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