Nanoparticle-electrode collision processes: Investigating the contact time required for the diffusion-controlled monolayer underpotential deposition on impacting nanoparticles

► Estimations of underpotential deposition during nanoparticle-electrode collisions. ► Order of magnitude minimum contact times established for monolayer deposition. ► Simulated results in agreement with experimental observations. ► Generalised results tabulated for experimental reference.