Nd- or Zr-modified CuO-CeO2/Al2O3/FeCrAl monolithic catalysts for preferential oxidation of carbon monoxide in hydrogen-rich gases

被引：13
|
作者：
Zeng, S. H. [1 ]
Liu, Y. [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Dept Catalysis Sci & Technol, Tianjin 300072, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 15期
关键词：
ceria; copper oxide; preferential oxidation; neodymium; zirconium; monolith; FeCrAl;
D O I：
10.1016/j.apsusc.2008.01.168
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：
This work presents a study on the role of the additives over CuO-CeO2/Al2O3/FeCrAl monolithic catalysts for the preferential oxidation of CO. The monolithic catalysts were prepared by in situ combustion method and characterized using SEM, XRD and TPR techniques. The results show that the addition of neodymium or zirconium in the CuO-CeO2/Al2O3/FeCrAl catalysts influences the dispersion state of copper oxide and ceria, lowers the activity of hydrogen oxidation and broadens the temperature window for total CO-conversion. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：4879 / 4885
页数：7
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