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Model of Electrochemical "Double Layer" Using the Phase Field Method

2002/03/20 by Jonathan E. Guyer, J. E. Guyer, Guyer, J. E. +7
Engineering · Materials Science · Physics and Astronomy · #Aluminum Alloy Microstructure Properties #Anodic Oxide Films and Nanostructures #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Solidification and crystal growth phenomena #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.cond-mat/0203420

14 pages, 10 figures

arxiv created 2002/03/20 · openalex publication_date 2002/03/20 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the first application of phase field modeling to electrochemistry. A free energy functional that includes the electrostatic effect of charged particles leads to rich interactions between concentration, electrostatic potential, and phase stability. The present model, explored for the equilibrium planar interface, properly predicts the charge separation associated with the equilibrium double layer at the electrochemical interface and its extent in the electrolyte as a function of electrolyte concentration, as well as the form expected of surface energy vs. potential ("electrocapillary") curves.

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