Fig. 38. Plot of the overpotential as a function of time at current densities of 10 mA cm⁻² (black) and 100 mA cm⁻² (red) measured in 1 M KOH for films deposited at 50 °C (dashed lines) and 103 °C (full lines). Reproduced with permission from ref. 733. Copyright American Chemical Society 2020.