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Influence of stirring velocity on the synthesis of magnetite nanoparticles (Fe3O4) by the co-precipitation method

“…86-0550, 81-0463 and 76-1821, respectively). The increase in the solutions' core temperature during synthesis by co-precipitation initially promotes the partial thermal transformation of magnetite to goethite [34], and then the dehydroxylation of goethite forms the amorphous Fe 2 O 3 phase, forming the crystalline hematite phase at higher temperatures [35]. Fig.…”

Discovery and potential ramifications of reduced iron-bearing nanoparticles—magnetite, wüstite, and zero-valent iron—in wildland–urban interface fire ashes

“…, consumption of starch during the reduction reaction). 2,63,77 In contrast, at low fire severity black carbon could prevent the reoxidation of reduced iron oxides. 78…”

A wet‐chemical preparation of a Fe 3 O 4 ‐CuO composite powder in core‐shell structure

“…Exothermal peaks occurring below 400 o C could not be assigned for sure. However, the peak at 295 o C could be ascribed to the transition of magnetite to γ-Fe 2 O 3 [9]. One exothermal peak became present at 507 o C, which might not be assigned with certainty.…”