ArticleChemical science2020
How to polarise an interface with ions: the discrete Helmholtz model.
Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Dependence of the Helmholtz layer capacitance on interfacial charge density at polarisable liquid|liquid interfaces.Chemical science · 2026Article
- Cobalt Oxide 2D Nanosheets Formed at a Polarized Liquid|Liquid Interface toward High-Performance Li-Ion and Na-Ion Battery Anodes.ACS applied materials & interfaces · 2023Article
- Direct imaging of micrometer-thick interfaces in salt-salt aqueous biphasic systems.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Deciphering second harmonic generation signals.Chemical science · 2021Article
- Electrochemistry, ion adsorption and dynamics in the double layer: a study of NaCl(aq) on graphite.Chemical science · 2021Article
- Vibrational Stark shift spectroscopy of catalysts under the influence of electric fields at electrode-solution interfaces.Chemical science · 2021Review
Corrections and comments
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Authors and funding
3 authors.
Funding
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Abstract
The distribution of electrolytes in an electric field usually relies on theories based on the Poisson-Boltzmann formalism. These models predict that, in the case of a metallic electrode, ionic charges screen the electrode potential, leading to concentration-dependent ion distributions. This theoretical framework was first applied at solid-liquid interfaces and then transposed to soft interfaces. However, in this latter case, the potential in which the electrolytes evolve is not homogeneous, which is less amenable to a mean-field description. In this report, we show that at polarised soft interfaces the potential difference takes place between two closely interacting ionic monolayers. In this configuration, ions of opposite charges directly neutralise each other leading to an absence of diffuse layers and charge screening by surrounding ions. Thus, independently of the electrolyte concentrations, the surface charge density is a linear function of the potential difference, which results in a constant capacitance.
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Registered trials
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