Charge inversion of colloidal particles in an aqueous solution: screening by multivalent ions.
We investigate the structure of the electric double layer on charged colloids by Monte Carlo simulations. Using the primitive model of asymmetric electrolytes, the integrated charge distribution function on a spherical colloidal particle are also studied. With high concentrations of divalent ions, numerical results predict charge oscillation and charge inversion phenomena, which the traditional Derjaguin-Landau-Verwey-Overbeek theory cannot reproduce.
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Department of Applied Physics, Hokkaido University, Sapporo 060-8628, Japan.
Nakayama
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