Fig. 3: Structure characterizations of the Co-L1@NC-800.
From: Synthesis of aromatic amides from lignin and its derivatives
a HR-TEM images, (b) HAADF-STEM images (Co single atoms are marked by yellow cycles), (c–e) EDS mapping C (red), N (green), Co (yellow), (f) N 1 s XPS of Co-L1@NC-800, (g) XANES spectra at the Co K-edge (inset is the magnified image), (h) FT-EXAFS at R-space, (i) EXAFS fitting shown in R-space and (j) Wavelet transform of Co-L1@NC-800, CoPC, Co foil and Co3O4.
