ArticleProceedings of the National Academy of Sciences of the United States of America2021
Microscopic origin of the effect of substrate metallicity on interfacial free energies.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Fundamental principles of photoelectrochemical sensors with focus on hexavalent chromium detection.RSC advances · 2025Review
- Optimizing the Au Particle Doping Size for Enhanced Photocatalytic Disinfection under Low-Intensity Visible Light.ACS nano · 2025Article
- Solid-Liquid Interfacial Free Energy from Computer Simulations: Challenges and Recent Advances.Chemical reviews · 2025Review
- Effect of Gold Substrate on the Interface between Graphene Monolayer and an Ionic Liquid.ACS nanoscience Au · 2025Article
- 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
- Ferroelectric field effect transistors based on two-dimensional CuInPMRS energy & sustainability : a review journal · 2024Article
- Microscopic origin of the effect of substrate metallicity on interfacial free energies.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
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Abstract
We investigate the effect of the metallic character of solid substrates on solid-liquid interfacial thermodynamics using molecular simulations. Building on the recent development of a semiclassical Thomas-Fermi model to tune the metallicity in classical molecular dynamics simulations, we introduce a thermodynamic integration framework to compute the evolution of the interfacial free energy as a function of the Thomas-Fermi screening length. We validate this approach against analytical results for empty capacitors and by comparing the predictions in the presence of an electrolyte with values determined from the contact angle of droplets on the surface. The general expression derived in this work highlights the role of the charge distribution within the metal. We further propose a simple model to interpret the evolution of the interfacial free energy with voltage and Thomas-Fermi length, which allows us to identify the charge correlations within the metal as the microscopic origin of the evolution of the interfacial free energy with the metallic character of the substrate. This methodology opens the door to the molecular-scale study of the effect of the metallic character of the substrate on confinement-induced transitions in ionic systems, as reported in recent atomic force microscopy and surface force apparatus experiments.
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