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. 2016 Oct 6;6:34765. doi: 10.1038/srep34765

Figure 2.

Figure 2

(a) B 1 s and (b) Ti 2p XPS spectra of B-TiO2−x samples with different B doping. (c) ESR spectra of B-TiO2−x samples with different B doping, measured at 295 K.