Fig. 3: Characterization of IL/Co-bCN and Co-bCN. | Nature Communications

Fig. 3: Characterization of IL/Co-bCN and Co-bCN.

From: Improving CO2 photoconversion with ionic liquid and Co single atoms

Fig. 3: Characterization of IL/Co-bCN and Co-bCN.The alt text for this image may have been generated using AI.

a TEM image of IL/Co-Bcn. b The corresponding EDX mapping images of elemental C, N, B, O, Co, and F of IL/Co-bCN. Scale bar: 200 nm. c The HAADF-STEM image of Co-bCN. Note: dots in orange circles indicate single Co atoms. Scale bar: 5 nm. d Normalized XANES spectra of Co-bCN, CoO, and Co foil, respectively, at the Co K-edge. e Fourier transformation of EXAFS spectra at the Co K-edge. f The corresponding EXAFS fitting curves of single-atom Co-bCN. Inset: simulated structure model of Co-bCN.

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