Effect of Fe doping on the catalytic performance of CuO-CeO2 for low temperature CO oxidation

被引：26
作者：
Ma, Shimei [1 ,2 ]
Lu, Guanzhong [1 ,2 ,3 ]
Shen, Yuexin [1 ,2 ]
Guo, Yun [1 ,2 ]
Wang, Yanqin [1 ,2 ]
Guo, Yanglong [1 ,2 ]
机构：
[1] E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China
[2] E China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China
[3] Shanghai Inst Technol, Res Inst Appl Catalysis, Shanghai 200235, Peoples R China
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2011年 / 1卷 / 04期
关键词：
HIGH-SURFACE-AREA; CARBON-MONOXIDE; PREFERENTIAL OXIDATION; SELECTIVE OXIDATION; COMPOSITE CATALYSTS; CE-FE; HYDROGEN; CU; GAS; COPPER;
D O I：
10.1039/c1cy00049g
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：
Cu1Ce8Fex-O catalysts for low temperature CO oxidation were prepared by an improved citrate sol-gel method with incorporation of thermal treatment under N-2, and characterized by the nitrogen adsorption-desorption, XRD, CO pulse experiments, CO-TPR and CO-TPD. When x = 1, the Cu1Ce8Fe1-O catalyst shows higher catalytic activity for CO oxidation, and the reaction temperature for 90% CO conversion (T-90) is only 50 degrees C. The presence of Fe in Cu1Ce8Fe1-O can improve the catalytic activity for CO oxidation, which results from its higher surface area, smaller crystalline size, higher activity and larger amounts of surface oxygen species.
引用
收藏
页码：669 / 674
页数：6
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