期刊
PHYSICAL REVIEW LETTERS
卷 107, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.107801
关键词
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资金
- CNPq
- Fapergs
- INCT-FCx
- US-AFOSR [FA9550-09-1-0283]
A theory is presented which allows us to accurately calculate the density profile of monovalent and multivalent counterions in suspensions of polarizable colloids or nanoparticles. In the case of monovalent ions, we derive a weak-coupling theory that explicitly accounts for the ion-image interaction, leading to a modified Poisson-Boltzmann equation. For suspensions with multivalent counterions, a strong-coupling theory is used to calculate the density profile near the colloidal surface and a Poisson-Boltzmann equation with a renormalized boundary condition to account for the counterion distribution in the far field. All the results are compared with the Monte Carlo simulations, showing an excellent agreement between the theory and the simulations.
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