Magnetic Field Effects on Electroless Deposition of Lead Metal—Lorentz Force Effects

The magnetic field effect (MFE) on lead metal deposition from the reaction of lead(II) acetate aqueous solution and a zinc metal plate was studied. The effect depends on the lead(II) acetate concentration. By applying a 0.38 T field, the deposition yield increased by 50% and 10%, respectively, when a 0.2 M and a 0.5 M solution was used. It decreased by about 5% when a 0.1 M solution was used. The effect is explainable by Lorentz-force-induced convection. The decrease or increase of the yield is probably attributable to the change of the rate-controlling step in this inhomogeneous reaction by the change of lead(II) ion concentration.