Fig. 1: Catalyst preparation strategy and structure characterization. | Nature Communications

Fig. 1: Catalyst preparation strategy and structure characterization.

From: Simultaneously activating molecular oxygen and surface lattice oxygen on Pt/TiO2 for low-temperature CO oxidation

Fig. 1

a Schematic illustration of the synthesis process of the PtPt-TiISAA+NP/TiO2-R catalyst. b AC-HAADF-STEM images and c EELS spectra of the PtPt-TiISAA+NP/TiO2-R, d, e enlarged high-resolution HAADF-STEM images taken from the selected areas in (c), and f interatomic distances in different orientations. The red circles indicate the Pt-Ti ISAA, while the blue and yellow spheres represent Ti and Pt atoms, respectively. g k2-weighted Fourier transform spectra from EXAFS and h Normalized Pt L3-edge XANES spectra of Pt foil, PtO2, PtNP/TiO2-R, and PtPt-TiISAA+NP/TiO2-R. i XPS spectra of Pt 4f.

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