Fig. 1: Morphological and structural characterizations of the investigated catalysts. | Nature Communications

Fig. 1: Morphological and structural characterizations of the investigated catalysts.

From: Operando monitoring of the functional role of tetrahedral cobalt centers for the oxygen evolution reaction

Fig. 1

Representative TEM a and HR-TEM b images of CoFe-NBs. c High-angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) image and STEM-EDX elemental maps of CoFe-NBs. d, e Co K-edge XANES spectra and fitting of FT-EXAFS spectra of as-prepared samples vs. references. f WT contour profiles of Co K-edge EXAFS spectra of as-prepared samples vs. references (R = radial distance). g The G(r) functions of Co-NBs and CoFe-NBs derived from neutron PDF analysis (r = real interatomic distance).

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