SINGLE-PARTICLE DYNAMICS OF WATER-MOLECULES IN CONFINED SPACE

被引：293
|
作者：
BELLISSENTFUNEL, MC [1 ]
CHEN, SH [1 ]
ZANOTTI, JM [1 ]
机构：
[1] MIT,DEPT NUCL ENGN,CAMBRIDGE,MA 02139
来源：
PHYSICAL REVIEW E | 1995年 / 51卷 / 05期
关键词：
D O I：
10.1103/PhysRevE.51.4558
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Recent neutron scattering studies of single-particle dynamics of water molecules contained in micropores of Vycor glass are presented. Results of incoherent quasielastic and inelastic neutron scattering spectra from the confined H2O are analyzed to obtain the elastic incoherent structure factor, the short time self-diffusion constants, the residence time for jump diffusion, the rotational relaxation time, and the proton density of states as functions of coverage and temperature. Implication for the degree of confinement and slowing down of the single-particle motions are discussed in light of available NMR relaxation data and computer molecular dynamic simulation results. © 1995 The American Physical Society.
引用
收藏
页码：4558 / 4569
页数：12
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