METHANE OXIDATIVE COUPLING OVER FLUORO-OXIDE CATALYSTS

被引：24
|
作者：
ZHOU, XP
ZHANG, WD
WAN, HL
TSAI, K
机构：
[1] Department of Chemistry, Xiamen University, Xiamen
来源：
CATALYSIS LETTERS | 1993年 / 21卷 / 1-2期
关键词：
FLUORO-OXIDE CATALYSTS; MODIFICATION; ACTIVE OXYGEN SPECIES; METHANE OXIDATIVE COUPLING;
D O I：
10.1007/BF00767376
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
LaF3 modified ZrO2, CeO2 and ThO2 catalysts for the oxidative coupling of methane indicate that ZrO2/LaF3, CeO2/LaF3 and ThO2/LaF3 Catalysts have high activity and high selectivity at low temperature. In the temperature region 480-650-degrees-C, the methane conversion is 24.38-30.8% and the C2= selectivity is 40-55.38%. The characterization of oxygen species on the catalysts indicates that, because of the modification of LaF3 to ZrO2, CeO2 and ThO2, it is favourable for the activation of O2.
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页码：113 / 122
页数：10
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