| EU-1分子筛的合成及其在正己烷异构化反应中的催化性能 | |
| Synthesis and catalytic activity in n-hexane isomerization of EU-1 zeolite | |
| 摘要: 在不同硅铝比(nSiO2/nAl2O3)的合成凝胶(含纯硅凝胶)中引入晶种，合成了纯相的EU-1分子筛。研究了铝源、模板剂和晶种添加量对EU-1分子筛的结晶度、形貌尺寸等的影响；重点研究了不同硅铝比对样品结晶度、晶粒尺寸、酸性、比表面积和孔容等的影响。将合成结果绘制成了纯相EU-1分子筛的合成条件三元图，从三元图可看出，晶种法可显著扩大纯相EU-1分子筛的合成区域。将Pt/H-EU-1用于正己烷异构化反应，结果表明，该催化剂具有优异的正己烷异构化活性及稳定性，对异构烷烃有较高的选择性。 | |
| 关键词: EU-1分子筛 硅铝比 模板剂 晶种 合成区域 正己烷异构化 | |
| 基金项目: 上海市自然科学基金(No.20ZR1455500)和上海应用技术大学引进人才科研启动项目(No.YJ2021‐34)资助。 | |
| Abstract: In this study,a series of pure-phase EU-1 zeolites were synthesized by introducing seeds into a series of synthetic gels with different SiO2/Al2O3 ratios (nSiO2/nAl2O3,containing pure silicon gel).The effect of the aluminum source,the amount of template and seed on the crystallinity,and the morphology and size of EU-1 zeolite were investigated.The effects of different SiO2/Al2O3 ratios synthesis systems on the crystallinity,crystal size,acidic property,specific surface area,and pore volume of the samples were emphatically studied.Pure phase EU-1 was synthesized not only in a high-silicon system but also in an aluminum-free system by the seeding method.The results were plotted into a ternary plot of the synthesis conditions of pure phase EU-1 zeolite.It is obvious from the ternary plot that the crystal seed method can significantly expand the synthesis region of pure phase EU1 zeolite.Pt/H-EU-1 was applied to catalyze the n-hexane isomerization reaction.The results showed that the catalyst had excellent n-hexane isomerization activity and stability,and high selectivity to isoparaffins. | |
| Keywords: EU-1 zeolite SiO2/Al2O3 ratio directing agent seed crystal synthetic region n-hexane isomerization | |
| 投稿时间：2022-10-11 修订日期：2023-03-09 | |
| 摘要点击次数: 1391 | |
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| 张通,史静,薛招腾,毛东森,滕加伟.EU-1分子筛的合成及其在正己烷异构化反应中的催化性能[J].无机化学学报,2023,39(4):659-670. | |
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