Table 8
BET analysis of the Fe–Mn–Ce/Al2O3 nanocatalysts calcined under different atmospheres.
Specific surface area (m2/g) |
|||
---|---|---|---|
Calcination atmosphere | Precursor | Fresh calcined (before test) | Used calcined (after test) |
Air | 157.3 | 212.2 | 196.8 |
Nitrogen | 157.3 | 186.3 | 167.1 |
Note. The bold values show the optimal condition.