| 第二组分对Au/CeO2催化剂甲醇部分氧化性能的影响 |
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| 引用本文： | 陈清波,罗来涛.第二组分对Au/CeO2催化剂甲醇部分氧化性能的影响[J].分子催化,2007,21(6):529-533. |
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| 作者姓名： | 陈清波 罗来涛 |
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| 作者单位： | 南昌大学,应用化学研究所,江西,南昌,330047 |
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| 摘 要： | 本文研究了Pd、Pt、Ru和Ag对Au/CeO2催化剂以及Pd含量对Au-Pd/CeO2催化剂甲醇部分氧化性能的影响,并运用XRD、TPD和TPR等手段对Au/CeO2和Au-Pd/CeO2催化剂进行了表征.结果表明,Pd和Pt的加入能提高Au/CeO2催化剂的活性,而Ru和Ag的加入效果正好相反.不同的Au/Pd比对Au-Pd/CeO2催化剂的活性和H2选择性的影响不同,其中Au/Pd=60:40的效果最好,因为Au60Pd40/CeO2催化剂形成的富Au型AuxPdy较多,甲醇的吸附温度较低和对反应产物H2的吸附较少.
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| 关 键 词： | Au-Pd催化剂 甲醇部分氧化 纳米CeO_2 制氢 |
| 文章编号： | 1001-3555（2007）06-0529-05 |
| 收稿时间： | 2007-01-24 |
| 修稿时间： | 2007-04-26 |
Effect of Second Constituent on the Properties of the Au/CeO2 Catalyst for Partial Oxidation of Methanol |
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| CHEN Qing-bo,LUO Lai-tao.Effect of Second Constituent on the Properties of the Au/CeO2 Catalyst for Partial Oxidation of Methanol[J].Journal of Molecular Catalysis (China),2007,21(6):529-533. |
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| Authors: | CHEN Qing-bo LUO Lai-tao |
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| Abstract: | The effects of second constituent M(Ag,Ru,Pd,Pt)and Pd content on the activities of Au/CeO2 catalysts for partial oxidation of methanol were studied.The catalysts were charecterizd by XRD,TPD and TPR.The results indicate that Au-Pd/CeO2 is the best among the Au-M/CeO2 catalysts and the most active catalyst is Au60Pd40/CeO2.Compared the catalysts with other Pd content,Au60Pd40/CeO2 catalyst has more AuxPdy with rich Au,lower reduced temperature and H2 chemisorption amount. |
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| Keywords: | Au-Pd catalyst Partial oxidation of methanol Nanometer CeO_2 Hydrogen |
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