Fig. 4
From: Partially amorphous iron-copper-nickel sulfides for robust bifunctional electrocatalysis
(a) Linear sweep voltammetry (LSV) plots of Fe1.4Cu1.2Ni0.4S, Fe1.4Cu0.4Ni1.2S, Fe0.4Cu1.2Ni1.4S and Fe0.4Cu1.4Ni1.2S as compared to the reference Pt/C electrode, (b) Tafel plot of electrocatalysts obtained by plotting potential against log |j|. (c) OER Nyquist plots of Fe1.4Cu1.2Ni0.4S, Fe1.4Cu0.4Ni1.2S, Fe0.4Cu1.2Ni1.4S, and Fe0.4Cu1.4Ni1.2S electrocatalysts with the inset showing the Randles circuit model used for fitting.
