Fig. 6: XAFS measurements and stability evaluation of Fe2P NC/TiO2. | Nature Communications

Fig. 6: XAFS measurements and stability evaluation of Fe2P NC/TiO2.

From: Iron phosphide nanocrystals as an air-stable heterogeneous catalyst for liquid-phase nitrile hydrogenation

Fig. 6

a Fe K-edge XANES spectra of Fe foil, FeO, Fe2P NCs, and Fe2P NC/TiO2. b Fourier transformation of k3-weighted Fe K-edge EXAFS spectra of Fe foil, FeO, Fe2P NCs, and Fe2P NC/TiO2. Wavelet transformations for k3-weighted EXAFS signals of c Fe foil, d FeO, e Fe2P NCs, and f Fe2P NC/TiO2. g Fe K-edge XANES spectra and h Fourier transformation of k3-weighted Fe K-edge EXAFS spectra of Fe2P NCs with increasing temperature under air. i Hydrogenation of 1a using Fe2P NC/TiO2 after heat-treatment in air. The columns denote the data mean values, and the error bars show the range. Reaction conditions: Fe2P NC/TiO2 (0.1 g), 1a (0.5 mmol), 2-propanol (3 mL), H2 (3.8 MPa), NH3 (0.2 MPa), 453 K, 3 h. Yield was determined by GC using the internal standard technique.

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