Platinum Monolayer Electrocatalysts for the Oxygen Reduction Reaction: Improvements Induced by Surface and Subsurface Modifications of Cores

Figure 11

Oxygen reduction activity at 0.9 V plotted in the order of strongest to weakest OH binding energy, and the binding energy of O is also given; both are shown in parenthesis in eV. (a) Ir₃Co, (b) Ir-Co cores. The Pt-skin surfaces with an interlayer of Pd show the highest activities in both cases [28].

(a)

(b)