Premium
Shape‐controlled synthesis of Fe nanoparticles with high‐ M s via modest‐temperature reduction method
Author(s) -
Yang H. T.,
Ogawa T.,
Hasegawa D.,
Takahashi M.
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200777380
Subject(s) - oleylamine , trioctylphosphine oxide , nanoparticle , solvent , oleic acid , chemistry , materials science , magnetic nanoparticles , chemical engineering , nanotechnology , nuclear chemistry , organic chemistry , biochemistry , engineering , extraction (chemistry)
To minimize the oxidation of Fe nanoparticles, 3 to 12 nm Fe nanoparticles have been synthesized by the modest‐temperature reduction of FeCl 2 in a non‐polar solvent. Trioctylphosphine oxide and oleylamine were used to avoid additional oxidation introduced by surfactants in comparison with oleic acid. The magnetic properties of Fe nanoparticles with different sizes reveal that the saturation magnetization ( M s ) of larger than 8.0 nm Fe nanoparticles is over 180 emu/g at 300 K. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)