Ivan N. Derbenev
Electrostatic interactions between charged dielectric particles in an electrolyte solution
Derbenev, Ivan N.; Filippov, Anatoly V.; Stace, Anthony J.; Besley, Elena
Authors
Anatoly V. Filippov
Anthony J. Stace
Professor ELENA BESLEY ELENA.BESLEY@NOTTINGHAM.AC.UK
Professor of Theoretical Computational Chemistry
Abstract
Theory is developed to address a significant problem of how two charged dielectric particles interact in the presence of a polarizable medium that is a dilute solution of a strong electrolyte. The electrostatic force is defined by characteristic parameters for the interacting particles (charge, radius, and dielectric constant) and for the medium (permittivity and Debye length), and is expressed in the form of a converging infinite series. The limiting case of weak screening and large inter-particle separation is considered, which corresponds to small (macro)ions that carry constant charge. The theory yields a solution in the limit of monopole and dipole terms that agrees exactly with existing analytical expressions, which are generally used to describe ion-ion and ion-molecular interactions in a medium. Results from the theory are compared with DLVO theory and with experimental measurements for the electrostatic force between two PMMA particles contained in a nonpolar solvent (hexadecane) with an added charge control agent.
Citation
Derbenev, I. N., Filippov, A. V., Stace, A. J., & Besley, E. (2016). Electrostatic interactions between charged dielectric particles in an electrolyte solution. Journal of Chemical Physics, 145(8), Article 084103. https://doi.org/10.1063/1.4961091
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 1, 2016 |
Online Publication Date | Aug 23, 2016 |
Publication Date | Aug 28, 2016 |
Deposit Date | Mar 26, 2020 |
Journal | The Journal of Chemical Physics |
Print ISSN | 0021-9606 |
Electronic ISSN | 1089-7690 |
Publisher | American Institute of Physics |
Peer Reviewed | Peer Reviewed |
Volume | 145 |
Issue | 8 |
Article Number | 084103 |
DOI | https://doi.org/10.1063/1.4961091 |
Public URL | https://nottingham-repository.worktribe.com/output/1868729 |
Publisher URL | https://aip.scitation.org/doi/10.1063/1.4961091 |
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