fig1

Figure 1. (A) Synthetic route illustration for 3DOM Co-OHNS and (B) its structural transformation observed via TEM; (C) XANES spectra at the Co K-edge; (D) Fourier-transformed k3-weighted EXAFS data, and (E) corresponding wavelet-transformed analyses for SOM ZIF-67, 3DOM Co-OHNS, and selected controls. This figure is quoted with permission from Lyu et al.[15]. TEM: Transmission electron microscopy; XANES: X-ray absorption near edge structure; EXAFS: extended X-ray absorption fine structure.