Counterion release from a discretely charged surface in an electrolyte: Monte Carlo simulation study

7th International Congress of Engineering Physics

物理学;工业技术

Hernández-Contreras, M.^1

Departamento de Física, Centro de Investigatión y Estudios Avanzados, Instituto Politécnico Nacional, Apartado Postal 14-740, México Distrito Federal, Mexico^1

关键词: Aqueous electrolyte solutions;    Bulk electrolytes;    Charged surfaces;    Counterion release;    Counterions;    Mean field;    Restricted primitive model;    Surface area;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/582/1/012005/pdf
DOI  :  10.1088/1742-6596/582/1/012005

学科分类：工业工程学

来源: IOP

【 摘 要 】

Monte Carlo simulations allowed us to determine the amount of released electric charges from a discretely charged surface in 1:1 aqueous electrolyte solution as a function of surface charge density. Within the restricted primitive model and for a fixed concentration of 0.1 M bulk electrolyte in solution, there is an increase in the number of released counterions per unit surface area as the strength of the surface charge is enhanced. A similar behaviour of the number of released counterions was also found through the use of mean field and liquid theory methods.