ArticleThe journal of physical chemistry. B2022
Dielectric Properties of Water in Charged Nanopores.
Article in The journal of physical chemistry. B, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Electrostatic Gating of Ionic Conductance through Heterogeneous van der Waals Nanopores.ACS nano · 2026Article
- High-sensitivity method for detecting dielectric changes in water driven by biomolecular hydration.Biophysics and physicobiology · 2026Article
- Electrical Conductivity and Permittivity of Porous Media: Origin, Measurements, and Implications.ACS measurement science au · 2025Review
- The Interplay between Dynamics and Structure on the Dielectric Tensor of Nanoconfined Water: Surface Charge and Salinity Effect.The journal of physical chemistry. B · 2024Article
- Structure and Dynamics of Water in Polysaccharide (Alginate) Solutions and Gels Explained by the Core-Shell Model.Biomacromolecules · 2024Article
- Cluster Formation Induced by Local Dielectric Saturation in Restricted Primitive Model Electrolytes.The journal of physical chemistry letters · 2024Article
- Impedance of nanocapacitors from molecular simulations to understand the dynamics of confined electrolytes.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Hygroscopic Growth of Adsorbed Water Films on Smectite Clay Particles.Environmental science & technology · 2024Article
- Phase State, Surface Tension, Water Activity, and Accommodation Coefficient of Water-Organic Clusters Near the Critical Size for Atmospheric New Particle Formation.Environmental science & technology · 2023Article
- Thermo-Osmosis in Charged Nanochannels: Effects of Surface Charge and Ionic Strength.ACS applied materials & interfaces · 2023Article
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Authors and funding
2 authors.
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Abstract
In this study, we examine the spectral dielectric properties of liquid water in charged nanopores over a wide range of frequencies (0.3 GHz to 30 THz) and pore widths (0.3 to 5 nm). This has been achieved using classical molecular dynamics simulations of hydrated Na-smectite, the prototypical swelling clay mineral. We observe a drastic (20-fold) and anisotropic decrease in the static relative permittivity of the system as the pore width decreases. This large decrement in static permittivity reflects a strong attenuation of the main Debye relaxation mode of liquid water. Remarkably, this strong attenuation entails very little change in the time scale of the collective relaxation. Our results indicate that water confined in charged nanopores is a distinct solvent with a much weaker collective nature than bulk liquid water, in agreement with recent observations of water in uncharged nanopores. Finally, we observe remarkable agreement between the dielectric properties of the simulated clay system against a compiled set of soil samples at various volumetric water contents. This implies that saturation may not be the sole property dictating the dielectric properties of soil samples, rather that the pore-size distribution of fully saturated nanopores may also play a critically important role.
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