Fig. 4: In-situ XAFS characterizations of 2%Ni-4nm/γ-Mo2N catalyst treated at different temperatures of 400 and 590 °C in the atmosphere of H2/N2 at a ratio of 3:1. | Nature Communications

Fig. 4: In-situ XAFS characterizations of 2%Ni-4nm/γ-Mo2N catalyst treated at different temperatures of 400 and 590 °C in the atmosphere of H2/N2 at a ratio of 3:1.

From: Reversing sintering effect of Ni particles on γ-Mo2N via strong metal support interaction

Fig. 4

a The evolution of Ni feature of Ni-4nm/γ-Mo2N and Ni-4nm/CeO2 from Ni K edge XANES, and the detailed comparison of XANES is presented at the right panel; The EXAFS figures at R space of b 2%Ni-4nm/γ-Mo2N-590 and 2%Ni-4nm/CeO2-590, and c 2%Ni-4nm/γ-Mo2N-400 and 2%Ni-4nm/γ-Mo2N-590; fitting details for Ni K-edge EXAFS spectra obtained for d–f 2%Ni-4nm/γ-Mo2N-400, and g–i 2%Ni-4nm/γ-Mo2N-590.

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