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. 2019 Sep 30;12(19):3208. doi: 10.3390/ma12193208

Figure 5.

Figure 5

Schematic illustration of two simple approaches have been widely used to synthesize monodispersed iron oxide NPs: (A) Thermal decomposition of iron-precursor in oleylamine and oleic acid as surfactant and (B) thermal decomposition of metal-organic complex in octadecene. (C) Representative TEM image of 12 nm Fe3O4 NPs prepared in large scale from the decomposition of iron (III) acetylacetonate. The inset is a digital photograph showing 8.2 g of the Fe3O4 NPs produced in a single batch [71].