. 2024 Aug 27;14(37):26920–26932. doi: 10.1039/d4ra04256e

Fitted parameters at the Mo K-edge (E₀ = 20 013 eV, S₀² = 0.98) determined from the EXAFS analysis of spectra recorded at room temperature on carburized catalysts. k = 3.5–15 Å⁻¹. Fit of the first peak(s) from the Fourier transform between 1 and 3 Å.

Catalyst	Backscatter	N	σ ² (Å²) × 10³	R (Å)
β-Mo₂C^a	C	2.7 ± 0.9	4.1 ± 0.3	2.08 ± 0.02
	Mo	7.3 ± 0.8	5.7 ± 0.5	2.966 ± 0.005
	ΔE₀ = −5.5 eV, r-factor = 0.01575, χ² = 592, N_ind = 13, N_var = 7
Mo₂C/SiO₂	C	3.5 ± 0.9	6 ± 2	2.10 ± 0.01
	Mo	7.3 ± 0.8	7.3 ± 0.6	2.978 ± 0.005
	ΔE₀ = −3.8 eV, r-factor = 0.01462, χ² = 441, N_ind = 13, N_var = 7
Mo₂C/TiO₂	C	3.1 ± 0.6	5 ± 2	2.11 ± 0.01
	Mo	5.1 ± 0.7	7.5 ± 0.8	2.984 ± 0.005
	ΔE₀ = −2.9 eV, r-factor = 0.01036, χ² = 121, N_ind = 13, N_var = 7

After reactivation in H₂ at 400 °C.

Fitted parameters at the Mo K-edge (E0 = 20 013 eV, S02 = 0.98) determined from the EXAFS analysis of spectra recorded at room temperature on carburized catalysts. k = 3.5–15 Å−1. Fit of the first peak(s) from the Fourier transform between 1 and 3 Å.