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. 2017 Jun 16;7:3646. doi: 10.1038/s41598-017-03509-y

Figure 5.

Figure 5

(a) Fraction of Ti3+ and Ti4+ in the samples based on XAFS analysis. The Magnéli phase composition of each sample was determined based on the XRD spectra of (b) TiOx-A, (c) TiOx-B, and (d) TiOx-C. (i) is the spectra of as-synthesized nanoparticles and (ii) is the spectra of heat-treated nanoparticles.