The size effect of the corrosion rate of a copper nanowire array. Part I: The corrosion potential variation

In obtaining a copper nanowire array by pulse template-assisted electrodeposition from a pyrophosphate electrolyte, during a long pause, the electrodeposited metal undergoes corrosion. Measurements of the corrosion potentials have shown that the corrosion rate of these materials in different corrosion environments depends on the pore size. The size effect of the corrosion rate can be accounted for by diffusion limitations of the electrode process of one of the conjugated stages, i.e., metal anodic dissolution or oxidant reduction.