Fig. 9: Overall Pt enrichment in NPG-Pt after coarsening in air.

1D concentration profiles for NPG-Pt air-annealed at 300 °C for 2 h and as-dealloyed NPG crossing the dealloying interface.

1D concentration profiles for NPG-Pt air-annealed at 300 °C for 2 h and as-dealloyed NPG crossing the dealloying interface.