| 单一模板线性多胺一步合成多级孔ZSM-5沸石微球 |
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| 引用本文： | 陈丽,薛腾,朱树燕,王一萌.单一模板线性多胺一步合成多级孔ZSM-5沸石微球[J].物理化学学报,2015,31(1):181-188. |
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| 作者姓名： | 陈丽 薛腾 朱树燕 王一萌 |
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| 作者单位： | 华东师范大学化学系, 上海市绿色化学与化工过程绿色化重点实验室, 上海 200062 |
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| 基金项目： | 国家自然科学基金(20890122)和国家科技支撑计划(2012BAE05B02)资助 |
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| 摘 要： | 线性多胺模板剂(二乙烯三胺(DETA)、三乙烯四胺(TETA)、四乙烯五胺(TEPA))作为单一模板合成了均匀的10-15 μm的多级孔沸石ZSM-5微球. 实验发现, 在水热过程中, 50 nm纳米的沸石晶体粒子自发地堆积成微球, 并且这些微球具有较大的介孔体积, 在傅-克烷基化反应中具有高的催化活性. 同时,我们发现线性多胺起到了模板剂和空隙填充剂的多重功能,这点明显不同于以前我们报道的线性二胺作为模板剂在合成ZSM-5沸石时,主要是起模板剂的作用.
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| 关 键 词： | 多级孔沸石 聚集体 单一模板 线性多胺 |
| 收稿时间： | 2014-09-29 |
| 修稿时间： | 2014-11-17 |
One-Step Synthesis of Hierarchical ZSM-5 Zeolite Microspheres Using Alkyl-Polyamines as Single Templates |
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| CHEN Li
,
XUE Teng
,
ZHU Shu-Yan
,
WANG Yi-Meng.One-Step Synthesis of Hierarchical ZSM-5 Zeolite Microspheres Using Alkyl-Polyamines as Single Templates[J].Acta Physico-Chimica Sinica,2015,31(1):181-188. |
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| Authors: | CHEN Li XUE Teng ZHU Shu-Yan WANG Yi-Meng |
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| Affiliation: | Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, P. R. China |
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| Abstract: | Diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepentamine (TEPA) were used as single templates to synthesize mesoporous zeolite ZSM-5 microspheres. The obtained 10-15 μm hierarchical aggregates had a uniformspherical morphology, which was spontaneously assembled by primary zeolite nanocrystals of 50 nmin size during the hydrothermal synthesis. The ZSM-5 aggregates had a tunable textual porosity, large mesopore volume, and high catalytic activity in the Friedel-Crafts alkylation. Diamine templates only acted as structure directing agents in our previous work. The current alkyl-polyamine templates acted as structure directing agents and space fillers in the synthesis of the hierarchical zeolites. |
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| Keywords: | Hierarchical zeolite Aggregate Single template Alkyl-polyamine |
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