| 焙烧温度对Cu/ZrO2和Cu-La2O3/ZrO2催化性能的影响 |
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| 引用本文： | 吴贵升,任杰,孙予罕.焙烧温度对Cu/ZrO2和Cu-La2O3/ZrO2催化性能的影响[J].物理化学学报,1999,15(6):564-567. |
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| 作者姓名： | 吴贵升 任杰 孙予罕 |
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| 作者单位： | The State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Science,Taiyuan 030001 |
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| 摘 要： | Cu／ZrO2催化剂作为一种新型的甲醇合成催化剂，和Cu-Zn-Al催化剂相比，具有优良的催化活性1，2]．Cu／ZrO2催化剂中活性中心及合成甲醇的反应机理与Cu-Zn-Al催化剂有较大差别，铜锆分散度及界面大小对甲醇合成活性有重要影响，如Keoppel等人研究发现，当Cu／ZrO2催化剂焙烧温度达到923K，ZrO2发生晶化，严重影响铜锆界面从而显著降低催化剂的活性3]．ZrO2作为p型半导体，在催化剂中不仅起对催化剂活性组分进行支撑和分散作用，它可与催化剂活性组分产生独特的相互作用．近年来，铜锆之间的相互作用及协同效应日益受到人们重视4…
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| 关 键 词： | Cu/ZrO2 Cu-La2O3/ZrO2 焙烧温度 甲醇合成催化剂 |
| 收稿时间： | 1998-07-28 |
| 修稿时间： | 1998-11-23 |
The Effect of Calcination Temperature on The Performance of Cu/ZrO2 and Cu-La2O3/ZrO2 |
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| Wu Guisheng,Ren Jie,Sun Yuhan.The Effect of Calcination Temperature on The Performance of Cu/ZrO2 and Cu-La2O3/ZrO2[J].Acta Physico-Chimica Sinica,1999,15(6):564-567. |
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| Authors: | Wu Guisheng Ren Jie Sun Yuhan |
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| Institution: | The State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Science,Taiyuan 030001 |
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| Abstract: | The performance of Cu/ZrO2 and Cu-La2O3/ZrO2 at different temperature was studied. The activity of both increased first and then decreased with the calcination temperature increased. This was due to the change of the copper dispersion and the interaction between copper and zirconia |
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| Keywords: | Cu/ZrO_2 Cu-La_2O_3/ZrO_2 Calcination temperature Methanol synthesis |
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