EIS investigation of zinc electrodeposition in basic media at low mass transfer rates induced by a magnetic field

This paper is devoted to the description of magnetic field effects on zinc electrodeposition from basic media. The major effect of the magnetic field stems from a slight magnetohydrodynamic forced convection located close to the cathodic interface. Classical impedance analysis reveals that the react ion mechanism is governed by two diffusing species, Zn(II) and OH-, the con tributions of which have been discerned. This leads to a good agreement bet ween experimental and theoretical impedance diagrams and shows, once again, that the magnetic field exerts no effect upon the transfer kinetics.