INFRARED SPECTROSCOPIC STUDY OF ZSM-5 ZEOLITES

被引：20

作者：

HATADA, K ^{[1
]}

ONO, Y ^{[1
]}

USHIKI, Y ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT CHEM ENGN,MEGURO KU,TOKYO 152,JAPAN

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-WIESBADEN | 1979年 / 117卷

关键词：

Acidic properties; Infrared spectroscopy; ZSM-5; zeolites;

D O I：

10.1524/zpch.1979.117.117.037

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：

Acidic properties of ZSM-5 zeolites have been studied by infrared spectroscopy. Tetrapropylammonium ions in ZSM-5 decompose at 400-500°C and acidic and nonacidic OH groups are observed by evacuation at 500°C. The Brönsted acidity (OH band at 3600 cm-1)increases considerably by ion exchange of Na+ with H+. Lewis acidity of H-ZSM-5 is observed by evacuation at 800°C, though the framework is partially destroyed. The ZSM-5 zeolite exchanged with Ca2+ or Cu2+ has been also examined. © 1979, Akademische Verlagsgesellschaft.

引用

页码：37 / 42

页数：6

共 11 条

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