The restricted primitive model of ionic fluids with nonadditive diameters

Abstract

The restricted primitive model with nonadditive hard-sphere diameters is shown to have interesting and peculiar clustering properties. We report accurate calculations of the cluster concentrations. Implementing efficient and ad hoc Monte Carlo algorithms we determine the effect of nonadditivity on both the clustering and the gas-liquid binodal. For negative nonadditivity, tending to the extreme case of completely overlapping unlike ions, the prevailing clusters are made of an even number of particles having zero total charge. For positive nonadditivity, the frustrated tendency to segregation of like particles and the reduced space available to the ions favors percolating clusters at high densities.

6 pages, 3 figures

References in corpus (1)

• A cluster theory for a Janus fluid

Cited by in corpus (8)

• Monte Carlo simulation of the nonadditive restricted primitive model of ionic fluids: Phase diagram and clustering
• Wertheim perturbation theory: thermodynamics and structure of patchy colloids
• Form invariance of the moment sum-rules for jellium with the addition of short-range terms in the pair-potential
• Two component boson-fermion plasma at finite temperature
• Wertheim and Bjerrum-Tani-Henderson theories for associating fluids: a critical assessment
• The moment sum-rules for ionic liquids at criticality
• From the Liouville to the Smoluchowski equation for a colloidal solute particle in a solvent
• Sum Rules in Quantum Liquids