Jair A. Corona-CastroGiaan Arturo Álvarez‐RomeroMargarita RiveraClara Hilda Rios-ReyesL.E. Bañuelos-GarcíaEduardo García SánchezLuis Humberto Mendoza-Huízar2026-03-222026-03-22202210.4067/s0717-97072022000205500https://doi.org/10.4067/s0717-97072022000205500https://andeanlibrary.org/handle/123456789/52818Citaciones: 2A kinetic study of the cobalt electrodeposition onto a carbon fiber ultramicroelectrode of 11 m of diameter was conducted in overpotential conditions from an aqueous solution containing 0.01 M CoCl2 + 0.1 M NH4Cl. From the voltamperometric and chronoamperometric studies, it was found that the value of the diffusion coefficient is 1.2x10 -5 cm 2 s -1 . The analysis of the current density transients suggests that cobalt electrodeposition onto a carbon fiber electrode follows an instantaneous nucleation process controlled by spherical diffusion mass transport. Also, the number of active nucleation sites increases as the applied potential decreases.enUltramicroelectrodeOverpotentialNucleationCobaltElectrochemistryDiffusionMicroelectrodeChemistryAnalytical Chemistry (journal)Fiberarticle