Fig. 4: Electrocatalytic performance of Fe/SAs@Mo-based-HNSs in the HER in 1.0 M KOH solution. | Nature Communications

Fig. 4: Electrocatalytic performance of Fe/SAs@Mo-based-HNSs in the HER in 1.0 M KOH solution.

From: Two-dimensional mineral hydrogel-derived single atoms-anchored heterostructures for ultrastable hydrogen evolution

Fig. 4

a Polarisation curves at a scan rate of 5 mV s−1 with potential error (iR) correction; b corresponding Tafel plots; c Electrochemical impedance spectroscopy (EIS) of the FeMoP-T samples and 20% Pt/C at an overpotential of 200 mV; d calculated electrochemical double-layer capacitance for selected as-prepared materials; e Faradaic efficiency of Fe/SAs@Mo-based-HNSs at different applied potentials. The error bar reflects the three device results; f Hydrogen production at a specific constant current density of 10 mA/cm2. The error bar reflects the three device results; g long-duration curves at a constant current density of 200 mA cm−2.

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