fig4
From: Dealloying-derived Fe-doped Ni(OH)2/Ni foils as self-supported oxygen evolution reaction catalysts
![Dealloying-derived Fe-doped Ni(OH)<sub>2</sub>/Ni foils as self-supported oxygen evolution reaction catalysts](https://image.oaes.cc/ca866c04-51ed-4b74-9490-517d6ed31ca2/4917.fig.4.jpg)
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.