Synthesis of mesoporous ZSM-5 by one-pot method in the presence of polyethylene glycol

被引：38
作者：
Chen, Guodong
Jiang, Lin
Wang, Lingzhi [1 ]
Zhang, Jinlong
机构：
[1] E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2010年 / 134卷 / 1-3期
基金：
国家高技术研究发展计划(863计划);
关键词：
Mesoporous; ZSM-5; PEG; Fluoride; Hydrothermal stability; HIERARCHICAL POROSITY; TUNABLE MESOPOROSITY; CRYSTALLINE ZEOLITE; MFI ZEOLITE; COMPOSITES; ALUMINOSILICATE; ADSORPTION; TEMPLATES; FLUORIDE; CARBONS;
D O I：
10.1016/j.micromeso.2010.05.025
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Mesoporous ZSM-5 was synthesized by using dual templates and one step hydrothermal crystallization method under alkali conditions Mesopores were created by using cetyltrimethylammonium bromide (CTAB) as the template and the crystallized pore wall framework was formed by using tetrapropylammonium bromide (TPAB) as the template. The specific influences of the polyethylene glycol (PEG) and ammonium fluoride (NH4F) addition, hydrothermal crystallization temperature, TPAB/Si and Al/Si ratio to the mesostructure and crystallinity of the obtained samples were carefully studied In this system. PEG plays an important role in the maintenance of the mesoporous pore ordering and the zeolite crystallinity. Moreover, the study on the hydrothermal stability of the sample with best mesoporous pore ordering and zeolite crystallinity showed this kind mesoporous zeolite has extremely high hydrothermal stability in boiling water (C) 2010 Elsevier Inc. All rights reserved
引用
收藏
页码：189 / 194
页数：6
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