Atoms and Nanoparticles of Transition Metals as Catalysts for Hydrogen Desorption from Magnesium Hydride
Figure 3
EXAFS analysis of the Nb-doped (5 at.%) Mg samples. (a) k3-weighted Fourier transform moduli (transformation range Å−1 for the as-deposited sample, Å−1 for the others) of the EXAFS spectra (markers) and corresponding best-fit curves (solid line) of the first two coordination signals (Nb-Mg and Nb-Nb for the as-deposited sample, two Nb-Nb for the others); no back-scatterer phase-shift correction was applied in the figure. (b) Fourier filtered spectrum (markers) in the fitting range and superimposed fit (solid line) of the as-deposited EXAFS spectrum; the residuum and the two single-scattering signals that contribute to the fit are reported.
