Fig. 3 | Nature Communications

Fig. 3

From: Ruthenium atomically dispersed in carbon outperforms platinum toward hydrogen evolution in alkaline media

Fig. 3

X-ray photoelectron spectroscopic and X-ray absorption spectroscopic studies. a C 1s and Ru 3d spectra of Ru-MF (upper panel) and Ru-NC-700 (lower panel). b N 1s spectra of Ru-MF (upper panel) and Ru-NC-700 (lower panel). Black curves are experimental data, shaded peaks are deconvolution fits, and red curves are the sum of the fits. c Normalized X-ray absorption near edge structure data for Ru-NC-700, solid lines are experimental data and dash lines are simulated data by density functional theory calculations. d Fourier transform of extended X-ray absorption fine structure data for Ru-NC-700, where black curve is experimental data and red curve is the best fit

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