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.
引用
收藏
页码：113 / 122
页数：10
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