| 乙醇完全氧化反应所用催化剂的性能研究 |
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| 引用本文： | 张政委,宋铁珊,陈志祥,赖小林,高林. 乙醇完全氧化反应所用催化剂的性能研究[J]. 应用化工, 2005, 34(5): 292-295 |
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| 作者姓名： | 张政委 宋铁珊 陈志祥 赖小林 高林 |
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| 作者单位： | 1. 中国科学院新疆理化所,新疆,乌鲁木齐,830011;中国科学院研究生院,北京,100039
2. 中国科学院新疆理化所,新疆,乌鲁木齐,830011 |
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| 摘 要： | 制备了一系列含Bi元素的负载型催化剂,考察它们对乙醇的催化氧化效果,用XPS和SEM研究了催化剂的表面微观结构,结果表明:含Bi和Cr两种元素的催化剂活性较高,随Cr∶Bi原子比的增大,催化剂活性先增大后降低,Cr∶Bi原子比为1.25时,催化剂活性达到最高。这类催化剂的晶格变形较大,表面存在大量吸附氧。催化剂中CeO2组分能够促进Bi Cr O复合氧化物的分散,对提高催化剂的活性有促进作用。
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| 关 键 词： | BiCr催化剂 乙醇 催化氧化 |
| 文章编号： | 1671-3206(2005)05-0292-04 |
| 修稿时间： | 2005-02-23 |
Study on properties and structure of catalysts comprising Bi for complete oxidation of alcohol by XPS |
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| ZHANG Zheng-wei,Song Tie-shan,CHEN Zhi-xiang,LAI Xiao-lin,GAO Lin. Study on properties and structure of catalysts comprising Bi for complete oxidation of alcohol by XPS[J]. Applied chemical industry, 2005, 34(5): 292-295 |
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| Authors: | ZHANG Zheng-wei Song Tie-shan CHEN Zhi-xiang LAI Xiao-lin GAO Lin |
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| Affiliation: | ZHANG Zheng-wei~ |
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| Abstract: | A series of catalysts comprising Bi were prepared, the microtexture of catalyst was researched by XPS and SEM, the result showed that:the catalysts that comprise Bi and Cr are the effective ones by comparing their effect of catalytic oxidation of alcohol. In the range of Cr∶Bi≤1.25, the effect of catalysts increased with Cr∶Bi ratio increases, and in the range of Cr∶Bi≥1.25, the effect of catalysts decreased with Cr∶Bi ratio increases. There exists deformed lattice and lots of adsorbed oxygen on the surface of this kinds of catalysts. The component of CeO_2 accelerates separation of Bi-Cr-O compound and catalytic effect of catalysts. |
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| Keywords: | Bi-Cr catalyst alcohol catalytic oxidation |
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