RATES OF INTERCAGE HOPPING IN NAA STUDIED BY XE-129 INVERSION-RECOVERY NUCLEAR-MAGNETIC-RESONANCE EXPERIMENTS

被引：2
|
作者：
NIVARTHI, SS [1 ]
MCCORMICK, AV [1 ]
机构：
[1] UNIV MINNESOTA, DEPT CHEM ENGN & MAT SCI, MINNEAPOLIS, MN 55455 USA
来源：
MICROPOROUS MATERIALS | 1994年 / 3卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
ZEOLITE NAA; XE-129 NUCLEAR MAGNETIC RESONANCE; INTERCAGE HOPPING; DIFFUSION;
D O I：
10.1016/0927-6513(93)E0071-N
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The dynamics of xenon motion between the alpha-cages of zeolite NaA have been studied using Xe-129 nuclear magnetic resonance (NMR) inversion-recovery experiments. The apparent spin-lattice relaxation times suggest that the rate of intercage hopping decreases with loading. An upper limit for the intracrystalline diffusion of xenon in NaA is also calculated and is consistent with estimates made from other techniques.
引用
收藏
页码：47 / 53
页数：7
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