fig1

Figure 1. (A-D) TEM images, (E) HRTEM image, (F) HAADF image, and (G-L) EDS elemental mappings of MnZn/N,P-3D-GA. TEM: Transmission electron microscope; HRTEM: high-resolution transmission electron microscopy; HAADF: high-angle annular dark-field imaging; EDS: energy dispersive X-ray spectroscopy; 3D: three-dimensional; GA: graphene aerogel.





