Fig. 6.

Comparison of the kinetic phase diagrams for hydrogen oxidation on annealed Rh foil (green), on the same foil, but additionally Ar⁺ sputtered (blue) and on a Rh nanotip (red). All diagrams were constructed for the temperature region of 433–493 K and constant oxygen pressure of 7.7 × 10⁻⁷ mbar