Debye–Hückel–Bjerrum theory for charged colloids

M.N. Tamashiro, Yan Levin and Marcia C. Barbosa

Physica A: Statistical Mechanics and its Applications, 1998, vol. 258, issue 3, 341-351

Abstract: We formulate an extension of the Debye–Hückel–Bjerrum theory [M.E. Fisher, Y. Levin, Phys. Rev. Lett. 71 (1993) 3826] to the fluid state of a highly asymmetric charged colloid. Allowing for the formation of clusters consisting of one polyion and n condensed counterions, the total Helmholtz free energy of the colloidal suspension is constructed. The thermodynamic properties, such as the cluster-density distribution and the pressure, are obtained by the minimization of the free energy under the constraints of a fixed number of polyions and counterions. In agreement with the current experimental and Monte Carlo results, no evidence of any phase transition is encountered.

Keywords: Charged colloids; Counterion condensation; Phase transitions in polyelectrolytes (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:258:y:1998:i:3:p:341-351

DOI: 10.1016/S0378-4371(98)00238-6

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