Fig. 2 | Nature Communications

Fig. 2

From: Identifying the structure of Zn-N2 active sites and structural activation

Fig. 2

Structural analysis of ZnNC by X-ray absorption fine structure (XAFS) spectroscopy. a Zn K-edge X-ray absorption near edge structure spectra of Zn foil, ZnPc and ZnNC. b Fourier transform (FT) of the Zn K-edge extended XAFS (EXAFS) spectra of Zn foil, ZnPc and ZnNC. c, d Corresponding EXAFS fitting curve of ZnNC in R and k spaces, respectively. Insets are the schematic model of Zn-N2. Light yellow, blue, light purple and red ivory balls represent carbon, nitrogen, zinc and oxygen atoms, respectively

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