| SO42-/Zr-ZSM-5 超强酸催化剂的制备和表征 |
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| 引用本文： | 季山,廖世军,王乐夫,Vladimir Linkov,Leslie Petrik.SO42-/Zr-ZSM-5 超强酸催化剂的制备和表征[J].分子催化,2002,16(5):379-383. |
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| 作者姓名： | 季山 廖世军 王乐夫 Vladimir Linkov Leslie Petrik |
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| 作者单位： | 1. 华南理工大学,化工学院,广东,广州,510640
2. Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa |
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| 基金项目： | This project is funded by Guangdong Natural Science foundation( project number:990 64 6) |
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| 摘 要： | 以硅溶胶和氧氯化锆为硅源和锆源，采用水热合成的方法制得具有ZSM-5结构的Zr-Si分子筛；用0.5mol/L的硫酸处理该分子筛，并在550℃焙烧，制得具有ZSM-5结构的SO4^2-/ZrO2-SiO2分子筛型的固体超强酸。采用XRD、SEM、TG、IR、NH3-PHD和指示剂法对其结构和酸性进行表征。结果表明，该SO4^2-/ZrO2-SiO2具有ZSM-5结构和超强酸性，其酸强度大于-13.75，且具有良好的热稳定性。
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| 关 键 词： | SO4^2－／Zr－ZSM－5 超强酸催化剂 制备 表征 锆－硅分子筛 水热合成 硫酸 结构 酸性 |
Preparation and Characterization of Novel Superacid Catalyst SO42-/Zr-ZSM-5 |
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| Vladimir Linkov,Leslie Petrik.Preparation and Characterization of Novel Superacid Catalyst SO42-/Zr-ZSM-5[J].Journal of Molecular Catalysis (China),2002,16(5):379-383. |
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| Authors: | Vladimir Linkov Leslie Petrik |
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| Abstract: | Zr\|ZSM\|5 zeolite has been synthesized by using normal inorganic Si and Zr reagents, and standard hydrothermal techniques. The SO 4 2- /Zr\|ZSM\|5 catalyst was prepared by impregnating the synthesized zeolite with \{0.5\} mol/L sulfuric acid solution and calcined at 823 K. The structure and acidity of the SO 4 2- /Zr\|ZSM\|5 catalyst was characterized by XRD, SEM, TG, IR, NH\-3\|TPD and indicator method. The results show that the SO 4 2- /Zr\|ZSM\|5 catalyst possesses ZSM\|5 structure and superacidity. The acid strength of SO 4 2- /Zr\|ZSM\|5 catalyst was stronger than -13.75 ( H 0), and the catalyst showed good thermal stability. |
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| Keywords: | Superacid catalyst ZSM\|5 Preparation Characterization |
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