Fig. 3
From: Partially amorphous iron-copper-nickel sulfides for robust bifunctional electrocatalysis
(a) Linear sweep voltammetry (LSV) plots of Fe1.4 Cu1.2 Ni0.4 S, Fe1.4 Cu0.4 Ni1.2 S and Fe0.4 Cu1.2 Ni1.4 S as compared to the reference Pt/C electrode, (b) Tafel plot of electrocatalysts obtained by plotting potential against log |j|. (c) HER Nyquist plots of Fe1.4Cu1.2Ni0.4S, Fe1.4Cu0.4Ni1.2S and Fe0.4Cu1.2Ni1.4S electrocatalysts with the inset indicating the fitted circuit.
