| Pt/CeO2-ZrO2-La2O3柴油车尾气氧化催化剂活性及抗硫性能 |
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| 引用本文： | 钟富兰,钟喻娇,肖益鸿,蔡国辉,郑勇,魏可镁.Pt/CeO2-ZrO2-La2O3柴油车尾气氧化催化剂活性及抗硫性能[J].催化学报,2011,32(9):1469-1476. |
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| 作者姓名： | 钟富兰 钟喻娇 肖益鸿 蔡国辉 郑勇 魏可镁 |
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| 作者单位： | 福州大学化肥催化剂国家工程研究中心,福建 福州,350002 |
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| 基金项目： | 国家科技支撑计划(2007BAE08B01)~~ |
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| 摘 要： | 采用两种方法制备了三种Pt/CeO2-ZrO2-La2O3柴油车尾气氧化催化剂,并用X射线衍射、N2物理吸附、程序升温还原、程序升温脱附、X射线荧光光谱和红外光谱等方法对其进行了表征.结果发现,制备方法对催化剂的结构、织构、抗硫性能及催化性能的影响非常大.对其进行硫中毒,导致起燃温度明显升高.将ZrO2和La2O3沉积...
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| 关 键 词： | 氧化铈 氧化锆 氧化镧 铂 沉积沉淀 硫中毒 柴油车尾气净化 |
Sulfur Resistance and Activity of Pt/CeO_2-ZrO_2-La_2O_3 Diesel Oxidation Catalysts |
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| ZHONG Fulan,ZHONG Yujiao,XIAO Yihong,CAI Guohui,ZHENG Yong,WEI Kemei.Sulfur Resistance and Activity of Pt/CeO_2-ZrO_2-La_2O_3 Diesel Oxidation Catalysts[J].Chinese Journal of Catalysis,2011,32(9):1469-1476. |
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| Authors: | ZHONG Fulan ZHONG Yujiao XIAO Yihong CAI Guohui ZHENG Yong WEI Kemei |
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| Institution: | ZHONG Fulan,ZHONG Yujiao,XIAO Yihong,CAI Guohui,ZHENG Yong,WEI Kemei* National Engineering Research Center of Chemical Fertilizer Catalyst,Fuzhou University,Fuzhou 350002,Fujian,China |
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| Abstract: | Three Pt/CeO2-ZrO2-La2O3 diesel oxidation catalysts were prepared by two different routes and characterized by X-ray diffraction, N2 adsorption, temperature-programmed reduction, temperature-programmed desorption, X-ray photoelectron spectroscopy, and infrared spectroscopy. The synthesis procedure affected the structure, texture, sulfur resistance, and catalytic activity of the catalysts. Sulfur poisoning increased the light-off temperature of all the catalysts, but the Pt/CeO2-ZrO2-La2O3 catalyst prepared ... |
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| Keywords: | ceria zirconia lanthana platinum deposition-precipitation sulfur-poisoning diesel exhaust purification |
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