Fig. 2: Structural characterization of Ni1Fe1-TiO2 DACs. | Nature Communications

Fig. 2: Structural characterization of Ni1Fe1-TiO2 DACs.

From: Suppressing COx in oxidative dehydrogenation of propane with dual-atom catalysts

Fig. 2: Structural characterization of Ni1Fe1-TiO2 DACs.The alternative text for this image may have been generated using AI.

a, b k2-weighted EXAFS spectra of (a) Fe K-edge and (b) Ni K-edge for Ni1Fe1-TiO2 and reference samples. k denotes the wave vector of the photoelectron. c The AC-STEM image, the line intensity profile of line 1 (insert, bottom), and corresponding EELS (side) for Ni1Fe1-TiO2. The top view of Ni1Fe1-TiO2 DACs is shown in the top right corner. d Experimental 57Fe Mössbauer spectra of Fe1-TiO2 and Fe1Ni1-TiO2 measured at 293 K. The doublets D1 and D2 represent Fe3+ and Fe2+ states, respectively.

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