title: Eigenstress model for electrochemistry of solid surfaces.
abstract: 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.
authors.affiliation: Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Hongxin
authors.initials: H
authors.lastname: Ma
authors.affiliation: Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Xilin
authors.initials: X
authors.lastname: Xiong
authors.affiliation: Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Panpan
authors.initials: P
authors.lastname: Gao
authors.affiliation: Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Li
authors.affiliation: Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Yan
authors.affiliation: Department of Mechanical Engineering, University of South Florida, Tampa, Florida 33620, USA.
authors.forename: Alex A
authors.initials: AA
authors.lastname: Volinsky
authors.affiliation: Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Yanjing
authors.initials: Y
authors.lastname: Su