fig2
![Triethanolamine assisted synthesis of bimetallic nickel cobalt nitride/nitrogen-doped carbon hollow nanoflowers for supercapacitor](https://image.oaes.cc/e527dc04-3929-477a-b539-9f4732575edd/5390.fig.2.jpg)
Figure 2. (A) XRD pattern of Ni3N-Co2N0.67/NC. (B and C) SEM images of Ni3N-Co2N0.67/NC. (D) TEM image. (E and F) high-resolution TEM image (Inset: SAED image). (G) high-angle annular dark field TEM image. (H and L) the EDS mapping images of Ni, Co, C, N, and O elements. (M) EDS diagram. XRD: X-ray diffraction; SEM: scanning electron microscopy; TEM: transmission electron microscopy; SAED: selected area electron diffraction.