The electrodeposition of Zn with Fe-group metals is classified as anomalous,since Zn deposits preferentially in most plating conditions.Although this phenomenon has been notorious,its mechanism remains not well elucidated.Among the hypothesis found in literature to explain this anomaly (1,2) the most wide spread one suggests that the precipitation of Zn(OH)_2 at the cathode inhibits Fe deposition,due to a local pH increase (2).
展开▼
