NUCLEAR-MAGNETIC-RESONANCE STUDIES OF THE SYNTHESIS OF SILICALITE BY THE FLUORIDE METHOD

被引：13

作者：

AXON, SA

KLINOWSKI, J

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1993年 / 89卷 / 23期

关键词：

D O I：

10.1039/ft9938904245

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：

The composition of the mother liquor in the course of synthesis of silicalite by the fluoride method has been monitored by C-13, F-19 and Si-29 NMR and by atomic absorption spectrometry. The Si content never exceeds 5% of the total Si content. Several distinct fluorosilicate species apart from SiF62- coexist in a complex dynamic equilibrium in the solution. The results indicate that synthesis proceeds via the type B solid-solid transformation mechanism, and we describe the successive reaction steps.

引用

页码：4245 / 4248

页数：4

共 22 条

[1] FOURIER-TRANSFORM INFRARED, SCANNING ELECTRON-MICROSCOPY AND MAGIC-ANGLE-SPINNING NUCLEAR-MAGNETIC-RESONANCE STUDIES OF SILICALITE SYNTHESIZED IN NONALKALINE MEDIA [J].