Amount (at%) of Co with different valence states in Co3O4 samples.
Sample | Co | Co(iii) | Co(ii) | Co(ii) (satellite) | Co(iii) (satellite) |
---|---|---|---|---|---|
T300-Co3O4 | 25.74 | 9.42 | 10.94 | 3.53 | 1.85 |
T350-Co3O4 | 28.6 | 9.68 | 12.51 | 4.21 | 2.20 |
T400-Co3O4 | 29.43 | 10.32 | 11.66 | 4.94 | 2.50 |
T450-Co3O4 | 27.07 | 9.64 | 10.18 | 5.26 | 1.99 |
T500-Co3O4 | 26.71 | 10.63 | 9.91 | 4.01 | 2.15 |