| MCM-41负载的La, Ce和Pt催化剂上三氯乙烯的低温催化燃烧 |
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| 引用本文： | 王幸宜,戴启广,郑翊.MCM-41负载的La, Ce和Pt催化剂上三氯乙烯的低温催化燃烧[J].催化学报,2006,27(6):468-470. |
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| 作者姓名： | 王幸宜 戴启广 郑翊 |
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| 作者单位： | 华东理工大学工业催化研究所结构可控先进功能材料及其制备教育部重点实验室,上海,200237 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 摘 要： | 分别采用直接水热合成法和浸渍法制备了Si-MCM-41, La-Si-MCM-41和Ce-Si-MCM-41介孔材料及其负载的Pt催化剂. 小角X射线衍射、氮气吸附和扩展X射线精细结构分析表明, La和Ce元素进入了MCM-41分子筛的骨架结构. NH3程序升温脱附测试未检测到含La和Ce样品表面的酸性. 所制备的催化剂具有较高的三氯乙烯催化燃烧活性及生成CO2和HCl的选择性.
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| 关 键 词： | 三氯乙烯 催化燃烧 镧 铈 铂 MCM-41分子筛 |
| 文章编号： | 0253-9837（2006）06-0468-03 |
| 收稿时间： | 2006-01-03 |
| 修稿时间： | 2006-01-03 |
Low-Temperature Catalytic Combustion of Trichloroethylene over La, Ce, and Pt Catalysts Supported on MCM-41 |
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| WANG Xingyi,DAI Qiguang,ZHENG Yi.Low-Temperature Catalytic Combustion of Trichloroethylene over La, Ce, and Pt Catalysts Supported on MCM-41[J].Chinese Journal of Catalysis,2006,27(6):468-470. |
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| Authors: | WANG Xingyi DAI Qiguang ZHENG Yi |
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| Institution: | Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | La- and Ce-incorporated Si-MCM-41 and Pt catalysts supported on these materials were prepared. The samples were characterized by small angle X-ray diffraction, N_2 adsorption, extended X-ray adsorption fine structure, and temperature-programmed desorption of NH_3. The results showed that La and Ce were incorporated into the Si-MCM-41. No acidity was detected on the La- and Ce-containing catalysts. The obtained catalysts had high activity for the trichloroethylene catalytic combustion and high selectivity for CO_2 and HCl. |
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| Keywords: | trichloroethylene catalytic combustion lanthanum cerium platinum MCM-41 molecular sieve |
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