Fig. 2: Morphological and structural characterizations. | Nature Communications

Fig. 2: Morphological and structural characterizations.

From: Steering acidic oxygen reduction selectivity of single-atom catalysts through the second sphere effect

Fig. 2

a HAADF-STEM image of Co-N4-NP. b Co K-edge XANES and c FT-EXAFS spectra of Co-N4, Co-N4-NP and reference samples. d Comparison between the experimental XANES spectrum and theoretical one calculated with the depicted structures of Co-N4-NP. (insert is the correlative atomic structures). e Co K-edge WT-EXAFS contour plots for Co-N4, Co-N4-NP and reference samples.

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