| Ce1-xCuxO2-x/Al2O3催化剂的制备及其甲烷催化燃烧性能 |
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| 引用本文： | 银凤翔,季生福,陈能展,赵丽萍,王伟,李成岳,刘辉.Ce1-xCuxO2-x/Al2O3催化剂的制备及其甲烷催化燃烧性能[J].化工学报,2006,57(4):744-750. |
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| 作者姓名： | 银凤翔 季生福 陈能展 赵丽萍 王伟 李成岳 刘辉 |
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| 作者单位： | 北京化工大学，可控化学反应科学与技术基础教育部重点实验室，北京 100029 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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中国科学院资助项目
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广东省博士启动基金
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中国石化集团公司资助项目
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北京化工大学校科研和教改项目 |
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| 摘 要： | 以γ-Al2O3为载体，采用共浸渍法制备了负载型Ce1-xCuxO2-x/Al2O3催化剂（x=0～1）以及不同Ce0.2Cu0.8O1.2含量的Ce0.2Cu0.8O1.2/Al2O3催化剂，采用XRD、TPR等现代分析测试手段对催化剂的结构进行了表征，评价了催化剂的甲烷催化燃烧性能.结果表明，Ce1-xCuxO2-x/Al2O3催化剂中Ce和Cu的摩尔比显著影响催化剂的催化性能，在载体γ-Al2O3表面，Ce和Cu形成了固溶体，从而提高了Cu的分散性，改变了Ce和Cu的氧化还原性能，提高了催化剂的甲烷催化燃烧性能，并且Ce和Cu之间存在着协同作用.
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| 关 键 词： | Ce1-xCuxO2-x/Al2O3催化剂 甲烷催化燃烧 X射线衍射 程序升温还原 |
| 文章编号： | 0438-1157（2006）04-0744-07 |
| 收稿时间： | 06 7 2005 12:00AM |
| 修稿时间： | 2005-06-072005-08-05 |
Catalytic combustion of methane over Ce1-xCuxO2-x/Al2O3 solid solution catalysts |
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| YIN Fengxiang,JI Shengfu,CHEN Nengzhan,ZHAO Liping,WANG Wei,LI Chengyue,LIU Hui.Catalytic combustion of methane over Ce1-xCuxO2-x/Al2O3 solid solution catalysts[J].Journal of Chemical Industry and Engineering(China),2006,57(4):744-750. |
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| Authors: | YIN Fengxiang JI Shengfu CHEN Nengzhan ZHAO Liping WANG Wei LI Chengyue LIU Hui |
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| Affiliation: | Key Laboratory of Science and Technology of Controllable Chemical Reactions, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | In this study, Ce1-xCuxO2-x/Al2O3（x=0—1）solid solution catalysts and Ce0.2Cu0.8O1.2/Al2O3 catalysts with different Ce0.2Cu0.8O1.2 loading were prepared with the co-impregnation method. The catalysts were characterized by means of X-ray diffraction（XRD）and temperature-programmed reduction（TPR）. It was found that some of the Ce1-xCuxO2-x/Al2O3 catalysts exhibited high activity for catalytic combustion of methane because of the formation of the solid solution which promoted the dispersion of Cu, and changed redox property of the catalyst.There existed synergetic effect between CeO2 and CuO and the mole ratio of Ce to Cu influenced the activity of the catalyst. |
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| Keywords: | Ce1-xCuxO2-x/Al2O3 temperature-programmed reduction catalyst catalytic combustion of methane X-ray diffraction |
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