Synthesis of nanosized ZSM-5 using different alumina sources

被引：65

作者：

Ismail, AA ^{[1
]}

Mohamed, RM ^{[1
]}

Fouad, OA ^{[1
]}

Ibrahim, IA ^{[1
]}

机构：

[1] CMRDI, Cent Met R&D Inst, Cairo, Egypt

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2006年 / 41卷 / 02期

关键词：

nanosized; ZSM-5; alumina sources; crystallinity;

D O I：

10.1002/crat.200510546

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Alumina sources can influence different aspects of ZSM-5 crystallization and it leads to change in the properties of the final product. The crystallinity of nanosized ZSM-5 zeolite from precursors mixtures containing different alumina sources, e.g. sodium aluminate, aluminum sulphate, aluminum hydroxide and alumina has been studied. The produced samples were investigated using XRD, SEM, FT- IR and BET surface area. The product obtained by sodium aluminate and aluminum sulphate was ZSM-5 phase. Whereas, the product obtained by aluminum hydroxide and alumina was the albit phase. As-synthesized ZSM-5 was prepared by sodium aluminate, as alumina source was the highest crystallinity. It was found that the average crystallite size increased in the following order; alumina < aluminum hydroxide < aluminum sulphate < sodium aluminate. The surface area increased in the following order; aluminum sulphate < sodium aluminate < aluminum hydroxide < alumina due to increasing in crystallinity percentage of ZSM-5. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：145 / 149

页数：5

共 23 条

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