A kinetic description of sorbate motion in zeolites using H-2 nmr

被引：9

作者：

Alexander, P

Gladden, LF

机构：

[1] UNIV CAMBRIDGE,DEPT CHEM ENGN,CAMBRIDGE CB2 3RA,ENGLAND

[2] UNIV CAMBRIDGE,CAVENDISH LAB,DEPT PHYS,CAMBRIDGE CB3 0HE,ENGLAND

来源：

ZEOLITES | 1997年 / 18卷 / 01期

关键词：

adsorption; diffusion; Monte Carlo;

D O I：

10.1016/S0144-2449(96)00090-5

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：

A model is presented to interpret the temperature dependence of motional correlation time data derived from H-2 n.m.r. relaxation time experiments of deuterated sorbed species within zeolites. In this work, a statistical description of intracage and intercage site-hopping processes is developed which relates the thermally activated jump processes occurring within the zeolites to the motional correlation times derived from the Lorentzian peak observed in H-2 n.m.r. studies. The model is applied to the interpretation of data acquired for the benzene-d(6)/HY system before and after hydrothermal dealumination. (C) Elsevier Science Inc. 1997

引用

页码：38 / 43

页数：6

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