Fig. 3: Electrochemical performances for OER. | Nature Nanotechnology

Fig. 3: Electrochemical performances for OER.

From: Out-of-plane coordination of iridium single atoms with organic molecules and cobalt–iron hydroxides to boost oxygen evolution reaction

Fig. 3

a, LSV curves in 1 M KOH at a scanning rate of 5 mV s−1. b, Overpotentials at 10 mA cm−2, 100 mA cm−2, 300 mA cm−2 and 600 mA cm−2. c, Tafel plots. d, Comparison of overpotentials and Tafel plots in reported hydroxide-based noble-metal single-atom OER electrocatalysts. e, Areal activity based on ECSA. f, Activity normalized relative to the catalyst mass. g, TOF from ICP-MS characterization. h, Electrochemical impedance spectroscopy. i, Chronoamperometry measurements of Ir1/(Co,Fe)-OH/MI at 10 mA cm−2, 100 mA cm−2 and 300 mA cm−2.

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