![]() An explanation of why this is so is still to be found.Ĥ) Mo2O5 can only be present when Mo(VI) species are also present. This is something we've also seen in our studies here. The Mo(IV) peak also moves to a higher binding energy. ![]() Mo 3d3/2 unscreened: 234.21 eV (a+4.94), FWHM 2.21 eV, weight 0.83ģ) This complex structure for MoO2 seems to be lost for mixed oxide samples (see Figure 9). The sharper, slightly asymmetric main peak at 229.3 eV and broader higher binding energy peak at 231.0 eV are ascribed to screened and unscreened final states. The Mo 3d peak shape for MoO3 is a simple spin-orbit doublet.Ģ) Pure MoO2 has a complex Mo 3d5/2 peak shape showing a two component (see Figure 4) structure. Some key points from this paper to consider for analysis of molybdenum oxides.ġ) MoO3 degrades over time under X-ray exposure. ![]() Two XPS fitting models for a Mo 3d spectrum of an amorphous molybdenum oxide sample: (A) Informed Amorphous Sample Model, and (B) Purely Synthetic Model.* The synthetic LF components were summed to form a single complex line shape for MoO2 (green) once a consistent model with the experimental data emerged.*įigure 9 from. ![]()
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