Table 4.
Summary of TGA-DTA analysis results.
| Samples |
Temperature range (°C) |
Endothermic peak (°C) |
1st stage weight loss (TGA) |
2nd stage weight loss (TGA) |
Total weight loss (%) |
Decomposition temperature (°C) in the DTA curve |
||
|---|---|---|---|---|---|---|---|---|
| Temperature range °C | weight loss (mg) | Temperature range °C | Weight loss (mg) | |||||
| Co3O4 | 25–900 | 135 | 25–262 | 0.37 | 262–599 | 1.54 | 19.1 | 342 and 506 |
| Fe–Co3O4 (0.05 M) | 25–900 | 132 | 25–279 | 0.41 | 279–598 | 1.15 | 15.6 | 339 and 509 |
| Fe– Co3O4 (0.1 M) | 25–900 | 95 | 25–300 | 0.89 | 300–475 | 0.19 | 10.8 | 507 and 574 |
| Fe–Co3O4 (0.15 M) | 25–900 | 106 | 25–296 | 0.9 | 296–486 | 0.14 | 10.4 | 415 and 458 |