ELECTRODEPOSITION STUDY ON ULTRAMICROELECTRODES .2. DIFFERENT GROWTH MODES IN AG CRYSTALLIZATION

The influence of the electrochemical treatment of the electrode, the s upporting electrolyte concentration and the applied potential, on the formation of current steps as well as on the growth patterns was studi ed for silver electrodeposition on carbon microelectrodes. The results are compared with those obtained previously on platinum. The most int eresting result is the ''two-dimensional'' dense branching structure w ith radial symmetry which was obtained for the first time in silver el ectrodeposits in a conventional cell.