What kind of ligand can be used for the synthesis of monodisperse iron nanoparticles and how can we prevent the formation of iron oxide nanoparticles during synthesis of iron nanoparticles? How does the alloying with different metals affect their magnetic properties? What kind of procedures can be used for the synthesis of iron nanoparticles that can be helpful in retaining magnetic properties?
I found an article that may be of use to you. It came from this very website :D
According to that paper, the polyol method seems to be a promising candidate for the synthesis of iron nanoparticles. Here is the except that I am reading from:
"The polyol method, in which the polyol acts as solvent,
reducing agent, and surfactant, is a suitable method for
preparing nanophase and micrometre size particles with
well defined shapes and controlled particle sizes.137–170
By this method, precursor compounds such as oxides,
nitrates, and acetates are either dissolved or suspended
in a diol, such as ethylene glycol or diethylene glycol.
The reaction mixture is then heated to reflux between
180 and 199uC. During the reaction, the metal precursors
become solubilised in the diol, form an intermediate,
and then are reduced to form metal nuclei,
which form metal particles. Submicrometre size particles
can be synthesised by increasing the reaction temperature
or inducing heterogeneous nucleation via adding
foreign nuclei or forming foreign nuclei in situ. Nanocrystalline
powders such as Fe, Co, Ni, Cu, Ru, Rh,
Pd, Ag, Sn, Re, W, Pt, Au, (Fe,Cu), (Co,Cu), (Co,Ni),
and (Ni,Cu) were also synthesised using different salt
precursors by this method.137–165"
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