期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 118, 期 1-3, 页码 145-153出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2004.07.076
关键词
electrokinetic phenomenona; Poisson-Boltzmann; montmorillonite
For the sake of simplicity, the description of electrokinetic phenomenona is based on mesoscopic continuous solution models [Poisson-Boltzmann (PB), Navier-Stokes (NS), or Smoluchowski approaches]. We have compared these mesoscopic theories to microscopic descriptions (atomic and molecular level) in the case of hydrated montmorillonite clays. The distributions of solvent molecules and ions have been examined. They are found to be in agreement as long as the interlayer spacing is large enough. The electro-osmotic flow has been calculated too; it is shown that a slip length has to be taken into account. Slipping may have significant consequences for the general theory of electrokinetic phenomenona. Some of them are briefly described. (c) 2004 Elsevier B.V. All rights reserved.
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