One to two phase electrolysis processes

Homogeneous accelerations, like gravity or inertia, lead to a buoyant force and a natural electro-induced flow, due to density gradients (one phase) or due to evolving bubbles (two phases) which occur during some electrolysis processes such as water electrolysis. This work addresses the impact of acceleration forces on the deposit properties at continuous and mesoscopic scales for both one and two-phase electrolysis processes. Predictive calculations of the deposition rate and deposit structure under uniform buoyant forces are presented, based on numerical simulations performed with varying acceleration values (0, 1, and 10 times the earth's gravity). Continuous scale calculations employ the finite volume method, while mesoscopic properties are derived from random walker calculations. A discussion is provided on the correlation between algorithm inputs and continuous scale calculation outputs, alongside an evaluation of the qualitative and quantitative evolution of structure with acceleration in relation to experimental results. Additionally, the impact of two-phase character on electro-induced flow at a vertical bubble-evolving electrode is explored concerning the evolution of primary current density distribution with the applied electrical potential.