Percentage of Ce3+ and Ce4+ and concentration of oxygen vacancies from XPS/Raman spectra.
| Samples | Ce3+% | Ce4+% | A OL | A OAds or AOV | Oxygen vacancies AOAds/AOL | Oxygen vacancies OV (%) |
|---|---|---|---|---|---|---|
| B1 | 60.06 | 39.90 | 5765.90 | 13 309.39 | 2.3082 | 3.2 |
| B2 | 63.36 | 36.63 | 4281.31 | 20 443.73 | 4.7752 | 5.6 |
| B3 | 56.56 | 43.43 | 3205.12 | 4730.96 | 1.476 | 2.8 |