Fig. 2: Elemental composition and oxidation state. | Nature Communications

Fig. 2: Elemental composition and oxidation state.

From: High vacancy formation energy boosts the stability of structurally ordered PtMg in hydrogen fuel cells

Fig. 2

a HAADF-STEM image and the corresponding EDS elemental mapping of a single structurally ordered PtMg/C-31 NP, showing Pt signal (red), Mg signal (green), and the overlapped signal. b High-resolution Pt 4 f XPS profiles of PtMg/C-31 and commercial Pt/C. c Pt L3 XANES and d Pt L3 K2 – weighted EXAFS spectra of PtMg/C-31, Pt foil, and PtO2.

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