Figure 1
Normalized peak height versus energy position for Ti K-pre-edge features in XANES spectra of TiOx units in different materials. There are three domains for fourfold-, fivefold- and sixfold-coordinated Ti {reproduced with permission from Farges et al. (1997) [Copyright 1997 American Physical Society]}. Colored symbols correspond to the Ti-GDC samples with different Ti concentrations. 38% Ti-GDC is reproduced from Li et al. (2021) with permission of the International Union of Crystallography. |