fig4
From: Dealloying-derived Fe-doped Ni(OH)2/Ni foils as self-supported oxygen evolution reaction catalysts
Figure 4. Surface SEM images of (A) O-Ni/200-3 and (B) O-Ni-Fe/200-3. (C) HRTEM, (D) SAED and (E) HAADF and corresponding elemental mapping images of Ni, Fe and O of O-Ni-Fe/200-3. SEM: Scanning electron microscope; HRTEM: high-resolution transmission electron microscopy; SAED: selected area electron diffraction; HAADF: high-angle annular dark field.
