Low-temperature CO oxidation over supported Pt catalysts prepared by colloid-deposition method

被引:68
|
作者
Li, Suying [1 ]
Liu, Gang [1 ]
Lian, Honglei [2 ]
Jia, Mingjun [1 ]
Zhao, Guoming [1 ]
Jiang, Dazhen [1 ]
Zhang, Wenxiang [1 ]
机构
[1] Jilin Univ, Coll Chem, Key Lab Surface & Interface Chem Jilin Prov, Changchun 130012, Peoples R China
[2] Zhengzhou Univ, Coll Chem Engn, Zhengzhou 450002, Peoples R China
基金
中国国家自然科学基金;
关键词
platinum catalysts; colloid deposition; CO oxidation;
D O I
10.1016/j.catcom.2007.10.016
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
In this work, various supported platinum catalysts (Pt/MeOx, Me = Fe, Zn, Al, Ni) were prepared by colloid-deposition method, and their catalytic properties for the low-temperature CO oxidation were investigated. It was found that the type of support has considerable effect on the activity of the catalysts. The addition of water vapor in feed stream has the positive influence on the activity of the catalysts. Under an optimized tested condition, Pt/Fe2O3 shows unusual low-temperature activity and long-term stability, and it can completely transform CO into CO2 at room temperature in the presence of water vapor for more than 3000 h. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1045 / 1049
页数:5
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