Fig. 2: Atomic and fine structure characterization of the Pb-RuO2 catalyst. | Nature Communications

Fig. 2: Atomic and fine structure characterization of the Pb-RuO2 catalyst.

From: Pinning effect of lattice Pb suppressing lattice oxygen reactivity of Pb-RuO2 enables stable industrial-level electrolysis

Fig. 2

a HAADF-STEM image and FFT pattern (inset) of the Pb-RuO2 catalyst. b Atomic-resolution HAADF-STEM image and structural model of the Pb-RuO2 crystal from the [001] direction. c Elemental mappings of Pb, Ru, and O in the Pb-RuO2 catalyst. d Pb L3-edge XANES spectra of Pb-RuO2 and PbO2. e Ru K-edge XANES spectra of Pb-RuO2, RuO2, and Ru foil. The inset is the valence state of Ru. f The Fourier-transformed Ru K-edge EXAFS spectra of Ru foil, RuO2, and Pb-RuO2. g–i The Wavelet transforms the Ru K-edge EXAFS signals of Ru foil, RuO2, and Pb-RuO2.

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