fig4
Figure 4. (A) STEM image; (B) EDS line scanning of a single particle; (C) AC-HAADF-STEM image and corresponding EDS spectrum and EDS element maps; (D-E) AC-HAADF-STEM image and EDS element maps of 5Pt/Bi50NC-900(H2). STEM: Scanning transmission electron microscopy; EDS: energy-dispersive X-ray spectroscopy; AC-HAADF-STEM: aberration-corrected high-angle-annular-dark-field scanning transmission electron microscopy.
