Fig. 2: Structural characterization of Re0.06Ru0.94O2 after 50 h OER in acid. | Nature Communications

Fig. 2: Structural characterization of Re0.06Ru0.94O2 after 50 h OER in acid.

From: Dynamic rhenium dopant boosts ruthenium oxide for durable oxygen evolution

Fig. 2

a, b Aberration-corrected HAADF-STEM image of Re0.06Ru0.94O2 after 50 h OER. Re sites are labeled with yellow-color circles. c EDS mapping images of Re0.06Ru0.94O2 catalyst after 50 h OER. d, e Ru K-edge XANES spectra and FT k2-weighted EXAFS signals for RuO2, Re0.06Ru0.94O2 before and after 50 h OER. f Comparison of Ru K-edge WT-EXAFS for RuO2, Re0.06Ru0.94O2 before and after 50 h OER. g, h Re L3-edge XANES spectra and FT k2-weighted EXAFS signals for Re7+ in aqueous solution, Re0.06Ru0.94O2 before and after 50 h OER. i Comparison of Re L3-edge WT-EXAFS for Re0.06Ru0.94O2 before and after 50 h OER.

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