| 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,(6):529-533 |
| 第二组分对Au/CeO2催化剂甲醇部分氧化性能的影响 |
| Effect of Second Constituent on the Properties of the Au/CeO2 Catalyst for Partial Oxidation of Methanol |
| 投稿时间：2007-01-24 修订日期：2007-04-26 |
| DOI： |
| 中文关键词: Au-Pd催化剂,甲醇部分氧化,纳米CeO_2,制氢 |
| 英文关键词:Au-Pd catalyst,Partial oxidation of methanol,Nanometer CeO_2,Hydrogen |
| 基金项目: |
| 陈清波 罗来涛 |
| 南昌大学应用化学研究所 江西南昌330047 |
| 摘要点击次数: 1356 |
| 全文下载次数: 2371 |
| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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