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Updated: Jun 14, 2026

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
Published on: August 4, 2023
Surface layering at the mercury-electrolyte interface
A Elsen1, B M Murphy, B M Ocko
1Institute for Experimental and Applied Physics, Christian-Albrechts-University Kiel, 24098 Kiel, Germany.
Abstract:
X-ray reflectometry reveals atomic layering at a liquid-liquid interface--mercury in a 0.01 M NaF solution. The interface width exceeds capillary wave theory predictions and displays an anomalous dependence on the voltage applied across it, displaying a minimum positive of the potential of zero charge. The latter is explained by electrocapillary effects and an additional intrinsic broadening of the interface profile, tentatively assigned to polarization of the conduction electrons due to the electric field of the electrochemical double layer at the interface.
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