SYNTHESIS AND CHARACTERIZATION OF DEFECT-FREE CRYSTALS OF MFI-TYPE ZEOLITES

被引：62

作者：

AXON, SA ^{[1
]}

KLINOWSKI, J ^{[1
]}

机构：

[1] UNIV CAMBRIDGE, DEPT CHEM, LENSFIELD RD, CAMBRIDGE CB2 1EW, ENGLAND

来源：

APPLIED CATALYSIS A-GENERAL | 1992年 / 81卷 / 01期

关键词：

CATALYST PREPARATION (ZEOLITES); MFI-TYPE ZEOLITES; NUCLEAR MAGNETIC RESONANCE; ZEOLITES; ZSM-5;

D O I：

10.1016/0926-860X(92)80258-E

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Si-29 magic-angle-spinning nuclear magnetic resonance spectra (with and without cross-polarization) and nitrogen adsorption isotherms demonstrate that the crystals of MFI zeolites synthesized using the "fluoride method" are free from structural defects. By contrast, defects are present in crystals prepared using conventional synthetic methods even after a lengthy hydrothermal treatment.

引用

页码：27 / 34

页数：8

共 19 条

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