| 纳米钙钛矿型LaMnO3的制备与汽车尾气处理 |
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| 引用本文： | 韩巧凤,魏国宝,汪信,杨绪杰,陆路德.纳米钙钛矿型LaMnO3的制备与汽车尾气处理[J].环境污染与防治,2001,23(4):148-150. |
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| 作者姓名： | 韩巧凤 魏国宝 汪信 杨绪杰 陆路德 |
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| 作者单位： | 南京理工大学化工学院,南京,210094 |
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| 基金项目： | 江苏省科委基金资助项目 |
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| 摘 要： | 用PEG法制备了钙钛矿LaMnO3纳米材料，并将其负载在涂有γ－Al2O3的堇青石载体上作为净化尾气的催化剂。用XRD、TEM对产物的结构及表面性能进行了分析。在依维柯汽车上进行了怠速、正常行驶及倒拖时催化剂三效性能的测试。发现纳米晶活性组分的催化效率比溶液浸渍法制得的催化剂好。
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| 关 键 词： | 纳米钙钛矿 复合氧化物 汽车 尾气净化 LaMnO3 制备 催化剂 |
Preparing for nanocrystais of perovskite-type oxide LaMnO3 and catalytic activity for automotive exhaust gas |
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| Han Qiaofeng,Wei Guobao,Wang Xin,et al..Preparing for nanocrystais of perovskite-type oxide LaMnO3 and catalytic activity for automotive exhaust gas[J].Environmental Pollution & Control,2001,23(4):148-150. |
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| Authors: | Han Qiaofeng Wei Guobao Wang Xin |
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| Institution: | Han Qiaofeng,Wei Guobao,Wang Xin,et al. School of Chemical Engineering,NUST,Nanjing 210094 |
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| Abstract: | Nanocrystals of perovskite type rare earth composite metal oxides LaMnO 3 and the support were prepared by the polyethylene glycol sol gel method. The crystal structure? particle size and morphology of the samples were characterized in detail by XRD and TEM. Three way catalytic performance for treating automotive exhaust gas was tested in IVECO bus at the slow speed, normal travel and reverse gear separately. The result showed that the catalytic performance of nanocrystals was obviously better than that prepared by solution impregnation. |
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| Keywords: | Nanocrystals Perovskite type Composite metal oxide Exhaust gas purification |
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