STRUCTURE AND DYNAMICS OF SIMPLE LIQUIDS IN HETEROGENEOUS CONDITION - AN NMR-STUDY OF THE CLAY WATER INTERFACE

被引：53
作者：
DELVILLE, A
LETELLIER, M
机构：
[1] Centre de Recherche sur la Matiere Divisee, CNRS, 45071 Orleans Cedex 02, IB rue de la Ferollerie
来源：
LANGMUIR | 1995年 / 11卷 / 04期
关键词：
D O I：
10.1021/la00004a050
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We use H-1 NMR relaxation measurements in a broad range of frequencies to extract information on the dynamical properties of water molecules in dilute suspensions of swelling clay particles. The frequency variation of the longitudinal relaxation rate suggests the existence of a 2D diffusion mechanism for water molecules adsorbed on the clay surface, with a residence time longer than 10(-6) s. This observation explains the paradoxical results frequently reported from NMR relaxation studies on such heterogeneous systems.
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页码：1361 / 1367
页数：7
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