Fig. 3 | Nature Communications

Fig. 3

From: Reversing the charge transfer between platinum and sulfur-doped carbon support for electrocatalytic hydrogen evolution

Fig. 3

Spectroscopic characterizations of the Pt/S–C catalysts. a Fourier transform of k2-weighted Pt L3-edge of PtSA/S–C, PtNC/S–C, PtO2, PtS2, and Pt foil. b Wavelet transform for the k2-weighted EXAFS spectra of PtSA/S–C, PtNC/S–C, PtO2, PtS2, and Pt foil. c High-resolution XPS spectra (Pt 4f) of PtSA/S–C, PtNC/S–C, and PtS2. d High-resolution XPS spectra (Pt 4f) of PtNC/BP2000-300 and PtNC/S–C-500. e Normalized XANES spectra at the Pt L3-edge of PtNC/BP2000-300 and PtNC/S–C-500

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