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. 2017 Oct 16;8:934. doi: 10.1038/s41467-017-01053-x

Fig. 3.

Fig. 3

Electrochemical activation and characterization of perovskite electrocatalysts for OER. a Electrochemical activation of n-SnNiFe perovskite at a constant voltage required to reach an initial current density of 5.0 mA cm−2 in O2-saturated 0.10 M KOH. b 95% iR-compensated LSV profiles at a scan rate of 10.0 mV s−1 and c Tafel plots of n-SnNiFe, p-SnNiFe, and IrO2. d Chronoamperometric response at a constant potential required for an initial current density of 10.0 mA cm−2 of p-SnNiFe perovskite and IrO2