624163.fig.0013a
(a)
624163.fig.0013b
(b)
624163.fig.0013c
(c)
624163.fig.0013d
(d)
Figure 13: Schematic representation of cobalt underpotenial deposition process on a silver substrate, which takes into account ammonia adsorption: (a) adsorption of ammonia molecules at potentials more positive than −600 mV; (b) and (c) processes of Co underpotenial deposit formation between −600 and −920 mV; (d) process of total silver substrate covering by cobalt at potentials ranging between −920 and −980 mV.