Dielectric properties of aqueous electrolytes at the nanoscale
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866908334891728896 |
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| author | Becker, Maximilian R. Loche, Philip Bonthuis, Douwe Jan Mouhanna, Dominique Netz, Roland R. Berthoumieux, Hélène |
| author_facet | Becker, Maximilian R. Loche, Philip Bonthuis, Douwe Jan Mouhanna, Dominique Netz, Roland R. Berthoumieux, Hélène |
| contents | Despite the ubiquity of aqueous electrolytes, the effect of salt on water organization remains controversial. We introduce a nonlocal and nonlinear field theory for the nanoscale polarization of ions and water and derive the electrolyte dielectric response as a function of salt concentration to first order in a loop expansion. By comparison with molecular dynamics simulations, we show that rising salt concentration induces a dielectric permittivity decrement and Debye screening in the longitudinal susceptibility but leaves the water structure remarkably unchanged. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_14846 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Dielectric properties of aqueous electrolytes at the nanoscale Becker, Maximilian R. Loche, Philip Bonthuis, Douwe Jan Mouhanna, Dominique Netz, Roland R. Berthoumieux, Hélène Soft Condensed Matter Despite the ubiquity of aqueous electrolytes, the effect of salt on water organization remains controversial. We introduce a nonlocal and nonlinear field theory for the nanoscale polarization of ions and water and derive the electrolyte dielectric response as a function of salt concentration to first order in a loop expansion. By comparison with molecular dynamics simulations, we show that rising salt concentration induces a dielectric permittivity decrement and Debye screening in the longitudinal susceptibility but leaves the water structure remarkably unchanged. |
| title | Dielectric properties of aqueous electrolytes at the nanoscale |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2303.14846 |