Preparation and Characterization of Rare Earth-Doped Ti/SnO₂-Sb-Mn Electrodes for the Electrocatalytic Performance

Figure 5

SEM images of Gd-doped/Ti-Mn-Sb-SnO₂ with (a) Mn (0%), (b) Mn (1%), (c) Mn (2%), (d) Mn (3%), and (e) Mn (4%).

(a)

(b)

(c)

(d)

(e)