fig1
Figure 1. (A) Schematic illustration of the synthesis of the Cu SAC; SEM image of (B) Cu/C and (C) Cu SAC; (D) HR-TEM and (E) AC-HAADF-STEM image of Cu SAC; (F) HAADF-STEM, and (G) element mapping image of Cu SAC. SAC: Single atom catalyst; SEM: scanning electron microscopy; AC-HAADF-STEM: aberration-correction high-angle-annular-dark-field scanning transmission electron microscopy; HR-TEM: high-resolution transmission electron microscopy.
