Fig. 3: In situ oxygen impregnation process. | Nature Communications

Fig. 3: In situ oxygen impregnation process.

From: In situ constructing atomic interface in ruthenium-based amorphous hybrid-structure towards solar hydrogen evolution

Fig. 3: In situ oxygen impregnation process.

a High-resolution XPS spectra at different sputtering depths for Ru 3d of the RRCN sample. b In-situ XANES spectra recorded at the Ru K-edge of RRCN at different oxidation time during the heat process, and the XANES data of the referenced standards of Ru foil and RuO2. Inset, Magnified absorption edge and white-line peak of XANES region. c Least-squares curve-fitting analysis of in-situ EXAFS spectra at the Ru K-edge. Inset, In-situ XANES spectra recorded at the Ru K-edge of RRCN at different oxidation time during the heat process. d Schematic illustration of the oxygen insertion process during the formation of RRCN. e Wavelet analysis of the RRCN sample during in-situ EXAFS states.

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