Gold-base catalysts supported on carbonate for low-temperature CO oxidation

被引：49
|
作者：
Lian, HL [1 ]
Jia, MJ [1 ]
Pan, WC [1 ]
Li, Y [1 ]
Zhang, WX [1 ]
Jiang, DZ [1 ]
机构：
[1] Jilin Univ, Coll Chem, Changchun 130023, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2005年 / 6卷 / 01期
基金：
中国国家自然科学基金;
关键词：
gold-base catalysts; metal carbonate; calcination; CO oxidation;
D O I：
10.1016/j.catcom.2004.10.012
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：
Au/MeCO3 (Me = Ca, Sr, Ba) catalysts prepared by co-precipitation method were studied for low-temperature CO oxidation in the presence/absence of water in the feed stream. The type of support and the calcination temperatures have considerable effect on the activity of the catalysts. Among them, Au/BaCO3 calcined at 473 K shows the highest activity, full conversion of CO can be obtained at ambient reaction temperature in the presence of moisture. The addition of water vapor in feed stream has positive influence on the activity of Au/MeCO3 catalysts for CO oxidation, which might be due to water can participate CO oxidation reaction directly. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：47 / 51
页数：5
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