| 焙烧温度对Pd-Ni-La-Ce催化剂性能影响的研究 |
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| 引用本文： | 胡劲召,;李凤仪.焙烧温度对Pd-Ni-La-Ce催化剂性能影响的研究[J].琼州学院学报,2008(5):47-50. |
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| 作者姓名： | 胡劲召 ;李凤仪 |
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| 作者单位： | [1]琼州学院化学系,海南五指山572200; [2]南昌大学应用化学研究所,江西南昌330047 |
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| 基金项目： | 国家863基金资助项目（863-715-003-0130） |
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| 摘 要： | 以浸渍法制备Pd-Ni-La-Ce催化剂,考察了焙烧温度对催化剂CO、C3H8、NO活性的影响,并对催化剂进行了TPR、CO-TPD和O2-TPD表征.700℃高温焙烧后的Pd-Ni-La-Ce催化剂对CO完全转化温度是290℃,催化剂在反应温度为500℃时对C3H8、NO转化率分别达到了95%和76%.结果表明：Pd-Ni-La-Ce汽车尾气净化催化剂具有良好的CO、C3H8和NO活性以及热稳定性.
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| 关 键 词： | 汽车尾气 催化剂 钯 |
Effects of Calcining Temperature on Activities of Pd-Ni-La-Ce Catalyst |
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| Institution: | HU Jin-zhao,LI Feng-yi(1.Department of Chemistry,Qiongzhou University,Wuzhishan Hainan 572200,China;2.Institute of Applied Chemistry,Nanchang University,Nanchang Jiangxi 330047,China) |
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| Abstract: | Pd-Ni-La-Ce catalysts were prepared with impregnation method.The influence of calcining temperature on the activities of Pd-Ni-La-Ce catalysts were studied,and the characters of Pd-Ni-La-Ce catalysts were researched by TPR、CO-TPD、O2-TPD.The CO 100% converting temperature of Pd-Ni-La-Ce catalyst calcined at 700℃ is 290℃.The conversion rate of C3H8、NO is 95% and 76% when the reaction temperature is 500℃.It was found that Pd-Ni-La-Ce catalyst has higher activities and thermal stability. |
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| Keywords: | automotive exhaust gas catalyst Palladium |
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