Figure 6
Plot of total pre-edge peak area [normalized according to Chaurand et al. (2007)] versus pre-edge peak centroid position. Black symbols, reproduced with permission, are from the work by Chaurand et al. (2007) and refer to the standard compounds (▪) recorded at the ESRF synchrotron and compounds (♦) recorded at Elettra synchrotron. Open triangles from the work by Chaurand et al. (2007) refer to the mixtures of (Oh)V3+ + (Py)V4+, (Py)V4+ + (Td)V5+ and (Oh)V3+ + (Td)V5+. Colored symbols refer to the values obtained by the experimental XANES spectra collected at QAS, NSLS-II. The colored circles refer to the standard compounds: V2O3 (red), V2O4 (orange) and V2O5 (green), measured in this work. The pink star refers to the VGDC20 sample measured in this work. |