Simulation of Diffusion-Controlled Growth of Interdependent Nuclei under Potentiostatic Conditions.

ABSTRACT: The problem of diffusion-controlled growth following an instantaneous nucleation event was studied within the framework of a new numerical model, considering the spatial distribution of hemispherical nuclei on the electrode surface and the mutual influence of growing nuclei via the collision of 3D diffusion fields. The simulation of the diffusion-controlled growth of hexagonal and random ensembles was performed at the overpotential-dependent number density of nuclei. The diffusion flow to each nucleus within a random ensemble was simulated by the finite difference method using the derived analytical expressions for the surface areas and the volumes formed at the intersection of 3D diffusion fields with the side faces of a virtual right prism with a Voronoi polygon base. The implementation

SUBMITTER: Kosov AV 

PROVIDER: S-EPMC9147730 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature