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Synthesis conditions of iron oxide nanostructures prepared in this work and Fe content of the investigated samples, according to quantitative chemical analysis.
| Sample Name | Synthesis Conditions | Material Structure | Fe, wt% |
|---|---|---|---|
| NV4 | 200 °C/3 h/20 bar | hematite | 68.87 |
| NV5 | 200 °C/3 h/60 bar | hematite | 68.41 |
| NV6 | 200 °C/3 h/100 bar | hematite | 68.32 |
| NV7 | 100 °C/3 h/1000 bar | hematite/goethite | 61.74 |
