Research Article
EIS Evaluation of Fe, Cr, and Ni in NaVO3 at 700°C
Table 1
Chemical reactions and equilibrium constants for the Fe-Na-V-O system at 700°C.
| | Number | Reaction | K |
| | 1 | 4 Fe3O4(s) + O2 = 6 Fe2O3(s) | 10.9158 | | 2 | 4 = 2 V2O4(s) + 2 Na2O(s) + O2 | −39.7131 | | 3 | = + Na2O(s) | −10.1885 | | 4 | 2 = V2O3(s) + 3 Na2O(s) + O2 | −47.6241 | | 5 | 2 = V2O3(s) + Na2O(s) + O2 | −27.2471 | | 6 | 2 V2O3(s) + O2 = 2 V2O4(s) | 14.7810 | | 7 | 2 FeVO4(s) + Na2O(s) = Fe2O3(s) + 2 | 15.5865 | | 8 | 2 Fe2O3(s) + 2 V2O4(s) + O2 = 4 FeVO4(s) | 8.5400 |
|
|
