Research Article
EIS Evaluation of Fe, Cr, and Ni in NaVO3 at 700°C
Table 3
Chemical reactions and equilibrium constants for the Ni-Na-V-O system at 700°C.
| | Number | Reaction | K |
| | 1 | 2 Ni(s) + O2 = 2 NiO(s) | 16.3501 | | 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 + O2 = 2 V2O4(s) | 14.7811 | | 7 | 3 NiO(s) + 2 = + | −15.3293 | | 8 | 6 NiO(s) + 2 + O2 = 2 | 9.0546 |
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