| 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,(5):379-383 |
| SO42-/Zr-ZSM-5 超强酸催化剂的制备和表征 |
| Preparation and Characterization of Novel Superacid Catalyst SO42-/Zr-ZSM-5 |
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| DOI： |
| 中文关键词: 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 |
| 英文关键词:Superacid catalyst,ZSM\|5,Preparation,Characterization |
| 基金项目:This project is funded by Guangdong Natural Science foundation( project number:990 64 6) |
| 季山 廖世军 王乐夫 Vladimir Linkov Leslie Petrik |
| [1]华南理工大学化工学院，广东广州510640 [2]DepartmentofChemistry,UniversityoftheWesternCape,PrivateBagX17,Bellkville7535,SouthAfrica |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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