| CeO2-Co3O4 Catalysts for CO Oxidation |
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| 作者姓名： | 许秀艳 李进军 郝郑平 |
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| 作者单位： | Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China |
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| 基金项目： | Project supported by the National Basic Research Program of China （2004CB719500） and the, Key Project of Knowledge Innovation of Chinese Academy of Sciences （KZCX3-SW-430） |
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| 摘 要： | CeO2-Co3O4 catalysts for low-temperature CO oxidation were prepared by a co-precipitation method. In combination with the characterization methods of N2 adsorption/desorption, XRD, temperature-programmed reduction （TPR）, and FT-IR, the influence of the cerium content on the catalytic performance of CeO2-Co3O4 was investigated. The results indicate that the prepared CeO2-Co3O4 catalysts exhibit a better activity than that of pure CeO2 or pure Co3O4. The catalyst with the Ce/Co atomic ratio 1 ： 16 exhibits the best activity, which converts 77% of CO at room temperature and completely oxidizes CO at 45 ℃.
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| 关 键 词： | CeO2 Co3O4 催化剂 一氧化碳 稀土 |
| 文章编号： | 1002-0721（2006）02-0172-05 |
| 收稿时间： | 2005-04-14 |
| 修稿时间： | 2005-07-13 |
CeO2-Co3O4 Catalysts for CO Oxidation |
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| Xu Xiuyan,Li Jinjun,Hao Zhengping.CeO2-Co3O4 Catalysts for CO Oxidation[J].Journal of Rare Earths,2006,24(2):172-176. |
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| Authors: | Xu Xiuyan Li Jinjun Hao Zhengping |
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| Affiliation: | 1. Tianjin Synergic Innovation Center for Chemistry & Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China;2. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China;1. Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Tahsi, Taoyuan 33509, Taiwan, ROC;2. Department of General Education, Army Academy ROC, Chungli, Taoyuan 32092, Taiwan, ROC;1. School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China;2. Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), Guangzhou, 510006, China;3. National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangzhou, 510006, China;1. School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China;2. Department of Military Installations, Army Logistics University of PLA, Chongqing 401311, China;3. Shandong Public Holdings Tongtai Environment Limited, Jinin 277200, China;4. School of Environmental Science & Engineering, Suzhou University of Science and Technology, Suzhou 215009, China |
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| Abstract: | CeO2-Co3O4 catalysts for low-temperature CO oxidation were prepared by a co-precipitation method.In combination with the characterization methods of N2 adsorption/desorption, XRD, temperature-programmed reduction (TPR), and FT-IR, the influence of the cerium content on the catalytic performance of CeO2-Co3O4 was investigated.The results indicate that the prepared CeO2-Co3O4 catalysts exhibit a better activity than that of pure CeO2 or pure Co3O4.The catalyst with the Ce/Co atomic ratio 1:16 exhibits the best activity, which converts 77% of CO at room temperature and completely oxidizes CO at 45 ℃. |
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| Keywords: | CO oxidation CeO2 Co3O4 CeO2-Co3O4 catalyst rare earths |
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