DIFFUSION OF H2 AND HD IN ZEOLITES - QUANTUM EFFECTS AT 100-K

被引：12

作者：

BOUCHAUD, JP

DELARA, EC

KAHN, R

机构：

[1] UNIV PARIS 06,F-75231 PARIS 05,FRANCE

[2] UNIV PARIS 07,F-75231 PARIS 05,FRANCE

[3] LAB SPECTROMETRIE PHYS,F-75231 PARIS 05,FRANCE

[4] CENS,LEON BRILLOUIN LAB,F-91191 GIF SUR YVETTE,FRANCE

来源：

EUROPHYSICS LETTERS | 1992年 / 17卷 / 07期

关键词：

FLUCTUATION PHENOMENA; RANDOM PROCESSES; BROWNIAN MOTION; CHEMICAL KINETICS;

D O I：

10.1209/0295-5075/17/7/002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The isotopes of hydrogen adsorbed in zeolites reveal both thermodynamical and dynamical anomalies for temperatures less than 100 K. We propose that quantum effects may explain the observed results, in particular the departure of the diffusion constant from an Arrhenius behaviour. With this hypothesis we find the same activation energy for H-2 and HD and a very good order of magnitude for the potential curvature at the bottom of the wells.

引用

页码：583 / 587

页数：5

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