Studies on Platinum Plating

Amount of platinum electrodeposition becomes greater when a surface of electrode, current density, bath concentration and bath temperature increase, but the increase rate of electrodeposition somewhat drops when the surface area of electrode becomes above 0.01dm2, current density above 5A/dm2, platinum content in 1l solution above 13g, content of Na2HPO4⋅12H2O above 180g, that of (NH4)2HPO4 above 16g or bath temperature above 70°C.What control the amount of platinum electrodeposition most are bath temperature and current density.The amount of platinum content is rather important as it controls the brightness of plating surface and time of plating.