fig5
From: Dealloying-derived Fe-doped Ni(OH)2/Ni foils as self-supported oxygen evolution reaction catalysts

Figure 5. OER activities of different catalysts in 1 M KOH. (A) LSV polarization curves. (B) Tafel plots. (C) Plots of difference between anodic and cathodic current density at 1.188 V vs. RHE as a function of scan rate. (D) Nyquist plots at 1.624 V vs. RHE, where points and lines represent the experimental and simulated data, respectively. (E) LSV curves obtained at different temperatures. (F) Arrhenius plots at 1.53 V vs. RHE. OER: Oxygen evolution reaction; LSV: linear sweep voltammetry; RHE: reversible hydrogen electrode.