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

被引：25

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

页码：669 / 674

页数：6

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