Figure 6

XPS analysis of SiTiNb-A material. Survey Spectrum (A) and the higher resolution spectra in the regions of Ti 2p (B), Nb 3d (C), Si 2p (D) e O 1 s (E).
XPS analysis of SiTiNb-A material. Survey Spectrum (A) and the higher resolution spectra in the regions of Ti 2p (B), Nb 3d (C), Si 2p (D) e O 1 s (E).