Fig. 6: Atom map of NPG-Pt layer along with the parent alloy (AgAuPt) after coarsening in air.

3D APT atom maps of Cu-filled dealloyed layer on NPG-Pt, air-annealed at 300 °C for 2 h showing Au, Ag, Pt, and Cu atoms. Scale bar is 50 nm. Refer to supplementary video for 3D reconstruction.