Electrical Interaction Energy between Two Charged Entities in an Electrolyte Solution
Resource
Journal of Colloid and Interface Science 217 (2): 219-236
Journal
Journal of Colloid and Interface Science
Journal Volume
217
Journal Issue
2
Pages
219-236
Date Issued
1999
Date
1999
Author(s)
Liu, Bo-Tau
Abstract
The electrical interaction energy between two charged entities in an electrolyte solution plays a significant role in various phenomena in colloid and interface science. Available methods for the estimation of this energy under the Debye-Huckel condition are discussed briefly, and a systematic approach based on a boundary integral method, which has the potential to yield an approximate analytical expression for various types of surfaces under a general surface condition, is introduced. The linear sizes of the interacting entities can be comparable or one is much larger than the other. A typical example for the former includes, for instance, the interaction between two colloidal particles. The stability behavior of a colloidal dispersion belongs to this category. That for the latter includes the interaction between a particle and a wall. The adsorption of particles to surfaces and the electrophoretic motion of particles near a boundary, for example, belong to this category. Extensions to more complicated cases, for example, multiple particles and arbitrary surfaces, are also discussed. Copyright 1999 Academic Press.
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journal article
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