Fig. 3: Electrocatalytic performance towards OER.
From: Selectively anchoring single atoms on specific sites of supports for improved oxygen evolution
a Polarization curves of CoOOH, Ir1/TO–CoOOH, and Ir1/VO–CoOOH. IrO2 was used as reference. The measurements were conducted in 1.0 M KOH. b Overpotentials at 10 mA cm−2 for CoOOH, Ir1/TO–CoOOH, and Ir1/VO–CoOOH. c Specific activities of CoOOH, Ir1/TO–CoOOH, and Ir1/VO–CoOOH normalized against ECSA at an overpotential of 300 mV. d Tafel slopes of CoOOH, Ir1/TO–CoOOH, and Ir1/VO–CoOOH. e Comparison of Tafel slopes and overpotentials at 10 mA cm−2 for currently reported cobalt-based OER catalysts. f Chronopotentiometric curves of Ir1/VO–CoOOH towards OER at 10 mA cm−2 for 20 h.
