Parsons, Drew; Ninham, Barry
The first direct measurements of forces between mica surfaces in electrolytes showed an apparent short range repulsion additional to the predictions of DLVO theory. The origins of such " secondary hydration forces" have remained a mystery. We show they can be explained as an repulsive entropic force appearing due to a hydration surface layer with longer range secondary hydration forces appearing as a consequence of ionic dispersion forces. Ionic dispersion forces are calculated from dynamic...[Show more]
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