Multinuclear NMR study of the structure and micro-dynamics of counterions and water molecules within clay colloids

被引：10

作者：

Porion, Patrice ^{[1
]}

Delville, Alfred ^{[1
]}

机构：

[1] Univ Orleans, CNRS, Ctr Rech Mat Divisee, F-45071 Orleans 2, France

来源：

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE | 2009年 / 14卷 / 03期

关键词：

Colloids; Clay; NMR; Diffusion; Relaxometry; Quadrupolar nuclei; NUCLEAR-MAGNETIC-RESONANCE; CHARGED ANISOTROPIC COLLOIDS; ELASTIC NEUTRON-SCATTERING; SPIN RELAXATION; SELF-DIFFUSION; AQUEOUS DISPERSIONS; QUADRUPOLAR; ECHO; MICROSTRUCTURE; SPECTROSCOPY;

D O I：

10.1016/j.cocis.2008.08.002

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：

Multinuclear NMR spectroscopy, relaxation and diffusion measurements were used recently to extract dynamical information on the long-time mobility of the water molecules and the neutralizing counterions condensed within the electrostatic well in the vicinity of the basal surface of clay particles. Multi-scale numerical modeling was used to interpret the NMR relaxation measurements and illustrate the interdependency between the solvent and ionic mobility and the organization of the anisotropic clay particles within the colloidal dispersions. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：216 / 222

页数：7

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