Atomistic models, Corrosion
Digital Object Identifier (DOI)
Thermodynamic analysis and molecular dynamics simulations were conducted to systematically study the size-dependent electrochemical response of solids. By combining the generalized Young-Laplace equation with the popular Butler-Volmer formulation, the direct influence of surface stress on solid film electrochemical reactions was isolated. A series of thermodynamic formulas were developed to describe the size-dependent electrochemical properties of the solid surface. These formulas include intrinsic surface elastic parameters, such as surface eigenstress and surface elastic modulus. Metallic films of Au, Pt, Ni, Cu and Fe were studied as examples. The anodic current density of the metal film increased, while the equilibrium potential decreased with increasing solid film thickness.
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Citation / Publisher Attribution
Scientific Reports, v. 6, art. 26897
This is an accepted manuscript of an article published by Nature Publishing Group in Scientific Reports. It is available online: https://doi.org/10.1038/srep26897.
Scholar Commons Citation
Ma, Hongxin; Xiong, Xilin; Gao, Panpan; Li, Xi; Yan, Yu; Volinsky, Alex A.; and Su, Yanjing, "Eigenstress Model for Electrochemistry of Solid Surfaces" (2016). Mechanical Engineering Faculty Publications. 214.