Electrode potential, zinc-pigmented

Flmre 1. Electrode potential vs. Immersion time In 3 jb NaCl solution and Impedance diagrams for steel electrodes with unmodified zinc pigmented coatings. 

Figure 2, Electrode potential ts. Inmerslon time in 3 % NaCl solution and impedanoe diagrams for steel electrodes with, zino pigmented coating modified by substitution of 1 of zinc with conducting carbon blade.

The protecting Cl form a separate group (e.g. metal pigments like zinc, aluminum, copper) that promotes cathodic polarization of the metal with a more positive potential. These Cl liberate electrons while dissolving in electrolytes and shifting the metal electrode potential up to a negative value, at which the anodic reaction is suppressed fully. 

---