Fig. 2: Structural characterizations of RuX nanozymes. | Nature Communications

Fig. 2: Structural characterizations of RuX nanozymes.

From: Lattice expansion in ruthenium nanozymes improves catalytic activity and electro-responsiveness for boosting cancer therapy

Fig. 2

a TEM image and selected area electron diffraction (SAED) pattern (inset) of Ru1000. b HR-TEM images of RuX (X = 800, 900, 1000, respectively). c XRD patterns of RuX. d Raman spectra of RuX. e XPS spectra of survey scan of RuX. f XPS spectrum of Ru 3p region of Ru1000. g Normalized XANES spectra of Ru1000, Ru900, RuO2, and Ru foil at Ru K-edge. Inset is the enlarged view of the pre-edge energy range of the samples. h Relationship between Ru K-edge absorption energy and valence states for Ru1000, Ru900, Ru foil, and RuO2. i FT-EXAFS spectra of Ru1000, Ru900, RuO2, and Ru foil. j Wavelet transform of Ru foil, RuO2, Ru900, and Ru1000. k Schematic illustration showing structure of Ru nanocrystals on N-doped carbon substrate (Ru900 or Ru1000). In (a, b) the experiments were repeated independently three times with similar results, and a representative result is shown for each. Source data are provided as a Source Data file.

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