INFRARED MICROSCOPIC STUDY OF SORPTION AND DIFFUSION OF TOLUENE IN ZSM-5

被引：67

作者：

MULLER, G ^{[1
]}

NARBESHUBER, T ^{[1
]}

MIRTH, G ^{[1
]}

LERCHER, JA ^{[1
]}

机构：

[1] UNIV TWENTE,DEPT CHEM TECHNOL,CHRISTIAN DOPPLER LAB HETEROGENEOUS CATALYSIS,7500 AE ENSCHEDE,NETHERLANDS

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1994年 / 98卷 / 31期

关键词：

D O I：

10.1021/j100082a006

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：

Time-resolved FTIR microscopy was used to investigate in situ the transport and sorption of toluene in individual ZSM-5 crystals with varying degree of perfection. The results indicate that the rate of transport of toluene in the pore system of zeolite ZSM-5 strongly depends upon the degree of crystal intergrowth. The diffusion coefficients observed with single crystals were 3 orders of magnitude higher than the diffusion coefficients measured for a polycrystalline sample. The first results of this new method to study diffusion in microporous materials are compared to the results from other techniques.

引用

页码：7436 / 7439

页数：4

共 30 条

[1] EVALUATION OF SORBATE REACTANT SHAPE-SELECTIVITY OF ZEOLITES BY GC PULSE TECHNIQUES [J].