Fig. 4: Electrocatalytic measurements of the different OER catalysts.
a Polarization curves. b Derived plots of their overpotentials (η10). c Tafel plots. d Chronopotentiometry measurements at a current density of 20 mA cm−2 over 20 h.
Fig. 4: Electrocatalytic measurements of the different OER catalysts. | NPG Asia Materials
