Fig. 4: Identification of the local structure of M1Pt1/NCNS catalysts. | Nature Communications

Fig. 4: Identification of the local structure of M1Pt1/NCNS catalysts.

From: A general strategy for preparing pyrrolic-N4 type single-atom catalysts via pre-located isolated atoms

Fig. 4

a–c The experimental K-edge XANES spectra and first derivative curves (insets) of M1Pt1/NCNS and references samples. d–f Comparison between the experimental K-edge XANES spectra of M1Pt1/NCNS and the simulated spectra. Some of the main features reproduced are highlighted at points “a” to “d”. Fitting results of the k3-weighted FT spectrum of M1Pt1/NCNS at Co (g), Fe (h), and Ni (i) K edges. The white, brown, blue, red, orange, green, and pink spheres represent H, C, N, O, Co, Fe, and Ni, respectively.

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