Fig. 3: X-ray absorption spectroscopy (XAS) characterizations of Pt-RuO2 and reference samples. | Nature Communications

Fig. 3: X-ray absorption spectroscopy (XAS) characterizations of Pt-RuO2 and reference samples.

From: Strain heterogeneity in RuO2 for efficient acidic oxygen evolution reaction in proton exchange membrane water electrolysis

Fig. 3: X-ray absorption spectroscopy (XAS) characterizations of Pt-RuO2 and reference samples.

a Pt L3-edge XANES spectra (inset: enlarged white line peak profiles) and b corresponding Fourier transform of EXAFS spectra (k weight = 3) and EXAFS fitting of Pt L3-edge of Pt-RuO2 catalyst. Inset, the structure of Pt-RuO2 (110) surface. c Pt L3-edge WT-EXAFS spectra of PtO2, Pt foil, and Pt-RuO2. d Ru K-edge XANES spectra (inset: enlarged pre-edge profiles) and e corresponding Fourier transform of EXAFS spectra (k weight = 3). R, bond length, FT, Fourier transform; k, wave vector.

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