Synthesis of Monodisperse Iron Oxide and Iron/Iron Oxide Core/Shell Nanoparticles via Iron-Oleylamine Complex
Copyright policy )Synthesis of Monodisperse Iron Oxide and Iron/Iron Oxide Core/Shell Nanoparticles via Iron-Oleylamine Complex
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.
- Massachusetts Institute of Technology United States
- National University of Singapore Singapore
- National University of Singapore Libraries Singapore
Monodisperse Nanoparticles, Macromolecular Substances, Surface Properties, Iron, Molecular Conformation, 540, Ferric Compounds, 620, Nanostructures, Iron Oxide, Magnetics, Materials Testing, Iron-Oleylamine Complex, Nanotechnology, Adsorption, Amines, Particle Size, Crystallization
Monodisperse Nanoparticles, Macromolecular Substances, Surface Properties, Iron, Molecular Conformation, 540, Ferric Compounds, 620, Nanostructures, Iron Oxide, Magnetics, Materials Testing, Iron-Oleylamine Complex, Nanotechnology, Adsorption, Amines, Particle Size, Crystallization
selected citations These citations are derived from selected sources.This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).17 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!