Electrodeposition of Polypyrrole/Reduced Graphene Oxide/Iron Oxide Nanocomposite as Supercapacitor Electrode Material

Figure 4

(a) Nyquist curves of PPy, PPy/RGO, and PPy/RGO/Fe₂O₃ and (b) cycle stability tests for PPy, PPy/RGO, and PPy/RGO/Fe₂O₃ at charge/discharge current density of 0.5 A/g.

(a)

(b)