Then, study the functions of compositions and the effect of the compositions on coating during charging reaction by i~t curve meanwhile during reduction by Taffel curve and Cathodic Polarization curve.

• 通过即时电位曲线研究了各种成分在置换反应阶段的作用及其对镀层影响; 通过阴极极化曲线和Taffel曲线研究了各种成分在还原反应阶段的作用及其对镀层性能影响。