Infrastructure: physical space of 20 m², with the following equipment: fume hood, Metrohm Pensalab PGSTAT 302N potentiostat/galvanostat, Metalprisma PL02 E grinding-polishing machine for metallography, Pantec RASN (B) analog bench durometer, Everest plastic bag sealing machine, Sanders ultrasonic bath. Miscellaneous: analytical balance, pH meters, heating plate, ultrasonic bath, heating magnetic stirrer, Metrohm Autolab B.V Autolab 204-PGSTAT204 potentiostat, Metrohm Autolab B.V FRA32M.x- FRA32M module.