Preparation and characterization of nanosized ZSM-5 zeolites in the absence of organic template

被引：161

作者：

Cheng, Y ^{[1
]}

Wang, LJ ^{[1
]}

Li, JS ^{[1
]}

Yang, YC ^{[1
]}

Sun, XY ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Environm Sci & Engn, Nanjing 210094, Peoples R China

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 27期

基金：

高等学校博士学科点专项科研基金;

关键词：

nanosized; synthesis; ZSM-5; zeolite; X-ray techniques; mechanism;

D O I：

10.1016/j.matlet.2005.06.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanosized ZSM-5 zeolite was successively synthesized in the absence of organic template by hydrothermal method. About 15 nm ZSM-5 zeolite was synthesized at 180 degrees C for 24 h after stirring at high speed and aging in the synthesis mixture with the molar composition of 12Na(2)O: 100SiO(2):2Al(2)O(3):2500 H2O. X-ray diffraction (XRD) confirmed ZSM-5 crystal phase. Transmission electron microscopy (TEM) showed that ZSM-5 zeolite crystal sizes are about 15 nm. The electron diffraction spectroscopy (EDS) shows nanosized ZSM-5 zeolites chemical element compound. Fourier transform infrared (FTIR) analysis further showed that they are pentacyclic with typical absorption summit of ZSM-5 at about 550 cm(-1). Differential thermal analysis and thermogravimetry analysis (DTA/TG) showed that, at room temperature to 1073 K, nanosized ZSM-5 mass loss is 5.836%. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：3427 / 3430

页数：4

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