| 氧化铝基表层ZrO2的相结构、孔结构及性能研究 |
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| 引用本文： | 周仁贤,魏建根,郑小明,吴红丽,吕光烈.氧化铝基表层ZrO2的相结构、孔结构及性能研究[J].物理化学学报,1995,11(12):1097-1100. |
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| 作者姓名： | 周仁贤 魏建根 郑小明 吴红丽 吕光烈 |
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| 作者单位： | Institute of Catalysis, Hangzhou University; Centrul Laboratory of Hangzhou Universtiy Hangzhou 310028 |
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| 摘 要： | 近年来，双组份氧化物的性质和作用越来越受到人们的重视，国内外学者对TIOZ／A1203，Ceo。／AI。oa＊，MgO／AI。osRI等作了大量的研究．Zro。既可以做工业催化剂的载体，又可作添加剂或活性组份，它具有酸、碱、氧化和还原四种化学性质，在一氧化碳加氢合成甲醇中更具有重要作用·本文通过改变在7－AI。O3表面上Zro：负载量，研究了Zro。－AI。Oa体系的相结构及孔结构，并以CO氧化为模型反应，结合TPD－MS等实验技术研究并考察了添加Zroz对Alzoa基催化氧化及表面氧性能的影响，探讨Zroz的助催化作用·1实验部分（1）实验样…
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| 关 键 词： | ZrO2-Al2O3催化剂 CO氧化 表面氧 |
| 收稿时间： | 1995-01-25 |
| 修稿时间： | 1995-04-24 |
Study on Phase Structure, Pore Structure and Catalytic Property of Out-layer ZrO_2 on Alumina Base |
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| Zhou Renxian, Wei Jiangen, Zheng Xiaoming.Study on Phase Structure, Pore Structure and Catalytic Property of Out-layer ZrO_2 on Alumina Base[J].Acta Physico-Chimica Sinica,1995,11(12):1097-1100. |
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| Authors: | Zhou Renxian Wei Jiangen Zheng Xiaoming |
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| Institution: | Institute of Catalysis, Hangzhou University; Centrul Laboratory of Hangzhou Universtiy Hangzhou 310028 |
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| Abstract: | XRD was used to Characterize the system of alumina supported ZrO2 in a temperature range of 500-1000℃. It was found that ZrO2 in ZrO2-Al2O3 sample was non-crystalline below 600℃, cubic-ZrO2 over a temperature range of 600-900℃,and t-ZrO2at temperature higher than 900℃. The pore structure, CO oxidation activity and suface oxygen properties of out-layer ZrO2 were also studied. The results indicated that small out-layer ZrO2 made a contribution to pore structure of alumina base in a pore size range of 10-50Å, and not only was CO oxidation activity of ZrO2-Al2O3 samples related to its phase structure, but also to properties of its surface oxygen desorption and lattice oxygen defect. |
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| Keywords: | ZrO_2-Al_2O_3 catalysts CO oxidation Surface oxygen |
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