@article {Yu:2006:1533-4880:2135, author = "Yu, S. and Chow, G.M.", title = "Synthesis of Monodisperse Iron Oxide and Iron/Iron Oxide Core/Shell Nanoparticles via Iron-Oleylamine Complex", journal = "Journal of Nanoscience and Nanotechnology", volume = "6", number = "7", year = "2006", abstract = "Monodisperse magnetic nanoparticles are of great scientific and technical interests. This paper reports a single-step synthesis of monodisperse magnetite nanoparticles with particle size of 8 nm. Iron/maghaemite core/shell nanoparticles with particle size of 11 nm were obtained by reducing the concentration of oleylamine. TEM and in-situ FTIR results suggested that iron-oleylamine intermediate was generated in-situ and decomposed at higher temperature. Oleylamine was also found on the surface of nanoparticles, indicating its role as capping agent which provided steric protection of as-synthesized nanoparticles from agglomeration. Both magnetite and iron/maghaemite core/shell nanoparticles were superparamagnetic at room temperature with a blocking temperature at 80 K and 67 K, respectively.", pages = "2135-2140", url = "http://www.ingentaconnect.com/content/asp/jnn/2006/00000006/00000007/art00038", doi = "doi:10.1166/jnn.2006.338", keyword = "MONODISPERSE NANOPARTICLES, IRON OXIDE, IRON-OLEYLAMINE COMPLEX" }