| 有氧条件下Au/CeO2/Al2O3催化还原NO的研究 |
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| 引用本文： | 徐秀峰,索掌怀,邹旭华,齐世学,安立敦. 有氧条件下Au/CeO2/Al2O3催化还原NO的研究[J]. 烟台大学学报(自然科学与工程版), 2002, 15(1): 31-34 |
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| 作者姓名： | 徐秀峰 索掌怀 邹旭华 齐世学 安立敦 |
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| 作者单位： | 烟台大学,应用催化研究所,山东,烟台264005 |
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| 基金项目： | 国家自然科学基金资助项目 (2 98730 41)，山东省科技计划项目 (9812 0 6 4 0 3) |
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| 摘 要： | NO是形成光化学烟雾、生成酸雨和破坏大气臭氧层的前驱气体之一，消除NO巳成为近几年国内外催化界的研究热点，Cu0-ZSM-5是国内外研究最成熟的催化剂，但实用性差，本研究以HAuCl4为前驱体，沉积-沉淀法制备Au/CeO2/Al2O3催化剂，用X-射线衍射（XRD）进行表征，考察了加入CeO2对Au/CeO2/Al2O3催化活性的影响。结果表明：Al2O3、CeO2/Al2O3表面的Au晶粒小，分散度高，Au/Al2O3的deNOx活性较低，而含金复合催化剂Au/CeO2/Al2O3的活性高于Au/Al2O3及Cu-ZSM-5。
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| 关 键 词： | Au／CeO2／Al2O3 deNOx活性 一氧化氮 大气污染 金 氧化铝 催化剂 催化还原法 氧化铈 |
Selective Catalytic Reduction of NO over Au/CeO2/Al2O3 under Oxygen Atmo sphere |
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| XU Xiu_feng,SUO Zhang_huai,ZOU Xu_hua,QI Shi_xue,AN Li_dun. Selective Catalytic Reduction of NO over Au/CeO2/Al2O3 under Oxygen Atmo sphere[J]. Journal of Yantai University(Natural Science and Engineering edirion), 2002, 15(1): 31-34 |
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| Authors: | XU Xiu_feng SUO Zhang_huai ZOU Xu_hua QI Shi_xue AN Li_dun |
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| Abstract: | Nitrogen monoxide(NO) is emitted mainly from automobile exhaust and other industrial sources(coal combustion etc.), and contributes largely to a variety of environmental problems, such as the formation of acid rain and photochemical smog. Therefore, the selective catalytic reduction of NO into N 2 has become one of the urgent environmental issues. Cu ZSM 5, the most mature deNO x catalyst in domestic and foreign studies, is apt to be deactivated by H 2O and SO 2. In the present study, Au/CeO 2/Al 2O 3 catalysts with different CeO 2 loadings, are prepared by deposition precipitation, and evaluated by selective reduction of NO into N 2. The results show that the catalytic performance of Au/CeO 2/Al 2O 3 is higher than that of Cu ZSM 5 for feed gas(0 6% NO+1 2% C 3H 8+5% O 2+He) with GHSV 5000 h -1 . |
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| Keywords: | Au/Al 2O 3 Au/CeO 2/Al 2O 3 X ray diffraction deNO x performance |
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