| 多组元贵金属尾气净化催化剂的氧化性能 |
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| 引用本文： | 旷成秀,李凤仪,刘康强.多组元贵金属尾气净化催化剂的氧化性能[J].工业催化,2006,14(8):55-58. |
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| 作者姓名： | 旷成秀 李凤仪 刘康强 |
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| 作者单位： | 1. 九江学院化学化工学院，江西 九江 332005； 2. 南昌大学化学系，江西 南昌 330047 |
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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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| 摘 要： | 用微反装置研究了Pt-Pd/Al2O3和Pt-Rh-Pd/Al2O3催化剂氧化态和还原态的催化活性。对催化剂进行了XRD、TPD和TPR表征，并对反应机理进行了探讨。结果表明，氧化态Pt-Pd/Al2O3催化剂的氧化性能优于其还原态，且具有相同的催化机理；氧化态Pt-Rh-Pd/Al2O3催化剂的氧化性能逊于其还原态，主要是由不同的催化机理所致。
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| 关 键 词： | 多组元贵金属 氧化态 还原态 催化剂 汽车尾气处理 |
| 文章编号： | 1008-1143（2006）08-0055-04 |
| 收稿时间： | 2006-03-03 |
| 修稿时间： | 2006年3月3日 |
Oxidation properties of multi-componenet noble metal catalysts for automotive exhaust treatment |
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| KUANG Cheng-xiu,LI Feng-yi,LIU Kang-qiang.Oxidation properties of multi-componenet noble metal catalysts for automotive exhaust treatment[J].Industrial Catalysis,2006,14(8):55-58. |
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| Authors: | KUANG Cheng-xiu LI Feng-yi LIU Kang-qiang |
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| Affiliation: | 1. Department of Chemistry and Chemical Engineering, Jiujiang University, Jiujiang 332005, Jiangxi, China; 2. Department of Chemistry, Nanchang University, Nanchang 330047, Jiangxi, China |
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| Abstract: | Oxidation activities of Pt-Pd/Al_2O_3 and Pt-Rh-Pd/Al_2O_3 catalysts,in their oxide-and reduced-state were studied by flow microreactor.The catalysts were characterized by means of TPD,XRD and TPR and their catalytic mechanisms discussed.The results showed that oxidation activity of Pt-Pd/Al_2O_3 catalysts in oxide-state was superior to those in reduced-state,with the same catalytic mechanism;oxidation activity of Pt-Rh-Pd/Al_2O_3 catalysts in oxidestate was inferior to those in reduced-state,with different catalytic mechanism. |
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| Keywords: | noble metal catalyst oxide-state reduced-state automotive exhaust treatment |
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