Promotion effect of metal oxides on inverse CeO2/CuO catalysts for preferential oxidation of CO

被引：9
|
作者：
Zeng, Shanghong [1 ]
Chen, Tianjia [1 ]
Liu, Kewei [1 ]
Su, Haiquan [1 ]
机构：
[1] Inner Mongolia Univ, Sch Chem & Chem Engn, Inner Mongolia Key Lab Chem & Phys Rare Earth Mat, Hohhot 010021, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2014年 / 45卷
基金：
中国国家自然科学基金;
关键词：
CeO2/CuO; Promotion; Hydrogen; Preferential CO oxidation; SELECTIVE OXIDATION; CUO-CEO2; CATALYSTS; CARBON-MONOXIDE; PERFORMANCE; H-2; CUO;
D O I：
10.1016/j.catcom.2013.10.022
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：
The MOx-CeO2/CuO (M = Co, Mn, Sn and Zn) catalysts were synthesized by the hydrothermal method and characterized by XRD, BET, SEM, H-2-TPR and HRTEM techniques. It is found that the MnO2-CeO2/CuO catalyst exhibits the best activity from 75 degrees C to 115 degrees C, suggesting that the addition of Mn is the most effective for improving low-temperature activity. The reasons are that MnO2 improves the dispersion of CeO2 and the textural property of CeO2/CuO catalyst. Moreover, the presence of MnO2 is favorable for preventing the reduction of CuO, and MnO2 also enhances the interaction between CeO2 and CuO. (C) 2013 Elsevier BM. All rights reserved.
引用
收藏
页码：16 / 20
页数：5
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