| 铈在汽车尾气净化催化剂中的应用 |
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| 引用本文： | 吴跃辉,罗来涛. 铈在汽车尾气净化催化剂中的应用[J]. 江西科学, 2006, 24(2): 201-204 |
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| 作者姓名： | 吴跃辉 罗来涛 |
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| 作者单位： | 南昌大学化学系,江西,南昌,330047;南昌航空工业学院环化系,江西,南昌,330034;南昌大学化学系,江西,南昌,330047 |
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| 摘 要： | 综述了铈在三效催化剂(TWC)中的应用研究现状。稀土铈对三效催化剂的改性作用表现在:在富燃和贫燃条件下起储存和释放氧的作用;促进活性金属在涂层上的分散程度和提高A l2O3的高温稳定性;促进水煤气变换反应和水蒸汽重整反应。
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| 关 键 词： | 铈 三效催化剂 应用 |
| 文章编号： | 1001-3679(2006)02-0201-04 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2006-02-17 |
Application of Ceria in Catalyst for Cleansing Automobile Exhaust |
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| WU Yue-hui,LUO Lai-tao. Application of Ceria in Catalyst for Cleansing Automobile Exhaust[J]. Jiangxi Science, 2006, 24(2): 201-204 |
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| Authors: | WU Yue-hui LUO Lai-tao |
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| Affiliation: | 1. Institute of Applied Chemistry, Nanchang University, Jiangxi Nanchang 330047 PRC; 2. Nanchang Institute of Aeronautical Technology,Jiangxi Nanchang 330034 PRC |
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| Abstract: | This paper reviews the multiple roles of ceria in three-way Catalysis.The effects of Ceria on the properties of TWC are discussed:oxygen storage and release under respective,lean and rich conditions;promoting active metal dispersion and increasing the thermal stability of Al_2O_3;promoting the water gas shift and steam reforming reactions. |
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| Keywords: | Ceria Three-way Catalysis Application |
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