Fig. 5: Characterization of Co-N-Mn/NC catalyst.
From: The geometric-electronic coupled design of diatomic catalyst towards oxygen reduction reaction
a TEM and b AC HAADF-STEM images of Co-N-Mn/NC catalyst. c The intensity profiles obtained on site A and site B. d Corresponding EDS mapping images of Co-N-Mn/NC catalyst. e The EXAFS spectra of Co K-edge in R space. f The EXAFS spectra of Mn K-edge in R space. g The R-space EXAFS fitting curves of the Co-N-Mn/NC at Co K-edge. Inset: Schematic diagram of the Co-N-Mn/NC structure. h The R-space EXAFS fitting curves of the Co-N-Mn/NC at Mn K-edge. Source data are provided as a Source Data file.
