Synthesis of high magnetization hydrophilic magnetite (Fe3O4) nanoparticles in single reaction—Surfactantless polyol process

Iron oxide nanoparticles for magnetically assisted patterned coatings

“…The darker color of the nanoparticles obtained by oxidation suggests that it contains mostly magnetite, while the slightly brownish color of the coprecipitation product might be due to the presence of some maghemite. Both phases display the same spinel structure with similar XRD patterns [16].…”

Functionalization strategies and dendronization of iron oxide nanoparticles

“…However, the size of NPs is polydispersed and the NPs tend to aggregate together as they are "naked" i.e without organic ligands on their surface, in water. Other methods such as the synthesis by microemulsion [10,11,12,13,14], the hydrothermal synthesis [15,16,17,18,19] or the polyol method [20,21,22,23] have been developed and allow a better NPs size and morphology control. Since 2000, [24,25,26] the synthesis of various NPs by thermal decomposition is highly developed.…”

Size controlled sonochemical synthesis of highly crystalline superparamagnetic Mn–Zn ferrite nanoparticles in aqueous medium

“…The synthesis of Mn-Zn ferrite nanoparticles were carried out based on our previous polyol method [12,28]. nanoparticles) with little variation in the molar ratios of the three different precursors of manganese, zinc and iron.…”

“…As can be seen from the figure, the second weight loss is almost insignificant for these samples. The onset of further weight loss for the third stage at around 600 o C is attributed to the oxidation of some of the Mn and a corresponding reduction of iron into Fe 2+ to maintain the charge balance [12]. Nevertheless, it can be inferred from the TGA curves of the polyol samples that the higher rate of weight loss implies larger amount of PEG coated on the surface of the nanoparticles leading to inhibiting their growth and resulting in smaller size of the particles for these samples.…”