fig5
Figure 5. 47/49Ti MAS NMR spectra. (Left) pristine TiO2 samples are examined as prepared, and after heating at 400 and 500 °C. (Right) V2O5-loaded TiO2 samples were examined under identical conditions. Reproduced with permission from[96]. Copyright 2015, Elsevier. MAS: Magic angle spinning; NMR: nuclear magnetic resonance.