摘要 : Monodisperse iron oxide nanoparticles (NPs) of 4 nm were obtainedthrough high-temperature solution phase reaction of iron (III) acetylacetonate with1, 2-hexadecanediol in the presence of oleic acid and oleylamine. The as-synthesiz... 展开 Monodisperse iron oxide nanoparticles (NPs) of 4 nm were obtainedthrough high-temperature solution phase reaction of iron (III) acetylacetonate with1, 2-hexadecanediol in the presence of oleic acid and oleylamine. The as-synthesizediron oxide nanoparticles have been characterized by X-ray diffraction, transmissionelectron microscopy, Mossbauer spectroscopy and magnetic measurements. Thespecies obtained were Fe_3O_4and/or γ-Fe_2O_3. These NPs are superparamagneticat room temperature and even though the reduced particle size they show a highsaturation magnetization (MS ≈ 90 emu/g). 收起