Fig. 3. IL-HAADF-STEM images (grey) and STEM-EDX composition maps of the pristine state (a) and (c) and after an AST of 10 800 cycles between 0.6 and 0.95 V_RHE at a scan rate 1 V s⁻¹ (b) and (d) for RhMo-doped PtNi (Pt in red, Ni in green, Rh in purple, and Mo in blue) and PtNi octahedra.