Fig. 2: XAS characterizations for M1Pt1/NCNS catalysts. | Nature Communications

Fig. 2: XAS characterizations for M1Pt1/NCNS catalysts.

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

Fig. 2: XAS characterizations for M1Pt1/NCNS catalysts.

a–c Radial distribution curve from FT-EXAFS of Co-NPs/NCNS, Co1Pt1/NCNS, Fe-NPs/NCNS, Fe1Pt1/NCNS, Ni-NPs/NCNS, and Ni1Pt1/NCNS, respectively, as well as their corresponding foil and oxide reference at Co, Fe, and Ni K edges. d–f Wavelet-transformed spectra of Co1Pt1/NCNS, Fe1Pt1/NCNS, Ni1Pt1/NCNS, as well as their corresponding foil and oxide reference at Co, Fe, and Ni K edges. g and h XANES and FT-EXAFS of Pt1/NCNS, Co1Pt1/NCNS, Fe1Pt1/NCNS, and Ni1Pt1/NCNS, respectively, as well as Pt foil and PtO2 reference at Pt L3 edge. i ICP-OES results of M (Fe, Co, and Ni) metal loadings.

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