fig2
From: Dealloying-derived Fe-doped Ni(OH)2/Ni foils as self-supported oxygen evolution reaction catalysts
Figure 2. Surface microstructures of (A) D-Ni/150-3, (B) D-Ni/200-3, and (C) D-Ni/250-3 dealloyed in 2 M NaOH. (D) Cross-section view of D-Ni/200-3. (E) EDS elemental distribution corresponding to the yellow square area in (B). (F) Elemental ratios obtained from EDS point scan corresponding to points 1 and 2 in (B). EDS: Energy dispersive spectroscopy.
