fig7

Figure 7. Repeated CV scan of (A) Pt ML/Au and (B) Pt ML/Ni in H₂-saturated 0.1 M NaOH at 50 mV s^-1 and 1,600 rpm. This figure is quoted with permission from Liu et al.^[46]. (C) LSV curves of ultrathin Ir films with respect to the number of deposition pulses. (D) Current density for HER (blue) and HOR (in red) at a 50 mV overpotential, normalized to geometric (open) and (H_UPD) surface area (solid). The dashed line signifies literature data. (E and F) Exchange current density for diverse Ir and/or Pt overlayers on Au or Pt RDE substrates. This figure is quoted with permission from Ahn et al.^[48].