Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 20, Issue 49, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/20/49/494230
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Thermodynamic properties of charge-stabilized colloidal suspensions depend sensitively on the effective charge of the macroions, which can be substantially lower than the bare charge in the case of strong counterion-macroion association. A theory of charge renormalization is proposed, combining an effective one-component model of charged colloids with a thermal criterion for distinguishing between free and associated counterions. The theory predicts, with minimal computational effort, osmotic pressures of deionized suspensions of highly charged colloids in close agreement with large-scale simulations of the primitive model.
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