Preferential oxidation of CO in H2 over Co3O4-CeO2 catalysts

被引：28
|
作者：
Guo, Qiang [1 ]
Liu, Yuan [1 ]
机构：
[1] Tianjin Univ, Coll Chem Engn, Dept Catalysis Sci & Technol, Tianjin 300072, Peoples R China
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2007年 / 92卷 / 01期
基金：
中国国家自然科学基金;
关键词：
preferential oxidation; Co3O4; CeO2; CO;
D O I：
10.1007/s11144-007-4982-y
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：
Co3O4-CeO2 catalysts prepared by the co-precipitation method have been studied for the preferential oxidation of carbon monoxide in hydrogen. Effects of the cobalt contents and calcination temperature on Co3O4-CeO2 were investigated, and the Co3O4-CeO2 catalyst containing 80 wt.% Co3O4 calcined at 350 degrees C exhibited the highest activity and good selectivity. The influence of the components of the feeding gas (H-2, CO2 and H2O) on the preferential oxidation of carbon monoxide had also been tested. The tested results showed that the negative effect of H-2 was much weaker than that of H2O and CO2.
引用
收藏
页码：19 / 25
页数：7
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