TY - JOUR
T1 - One-step synthesis of air-stable nanocrystalline iron particles by thermal decomposition of triiron dodecacarbonyl
AU - Shpaisman, Nava
AU - Bauminger, E. R.
AU - Margel, Shlomo
PY - 2008/4/24
Y1 - 2008/4/24
N2 - Air-stable Fe nanoparticles have been produced by one-step synthesis, via thermal decomposition of methanol protected Fe3(CO)12 under inert atmosphere. The heating temperature allows control of size and size distribution of the particles, as well as their composition and magnetic properties. Characterization of the obtained particles has been accomplished by TEM, HRTEM, FTIR, XRD, TGA, XPS, elemental analysis, Mössbauer spectroscopy and magnetic susceptibility measurements. Nanoparticles obtained at 900 °C are ferromagnetic with magnetic moment close to that of bulk Fe. These nanocrystalline particles have a core-shell structure where a coating of carbon and Fe3C/Fe3O4 protect the core body-centered cubic Fe from oxidation. The thermal stability of the Fe nanoparticles has been elucidated.
AB - Air-stable Fe nanoparticles have been produced by one-step synthesis, via thermal decomposition of methanol protected Fe3(CO)12 under inert atmosphere. The heating temperature allows control of size and size distribution of the particles, as well as their composition and magnetic properties. Characterization of the obtained particles has been accomplished by TEM, HRTEM, FTIR, XRD, TGA, XPS, elemental analysis, Mössbauer spectroscopy and magnetic susceptibility measurements. Nanoparticles obtained at 900 °C are ferromagnetic with magnetic moment close to that of bulk Fe. These nanocrystalline particles have a core-shell structure where a coating of carbon and Fe3C/Fe3O4 protect the core body-centered cubic Fe from oxidation. The thermal stability of the Fe nanoparticles has been elucidated.
KW - Chemical synthesis
KW - Coating material
KW - Magnetic measurements
KW - Nanofabrication
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=40749112840&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2007.01.002
DO - 10.1016/j.jallcom.2007.01.002
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AN - SCOPUS:40749112840
SN - 0925-8388
VL - 454
SP - 89
EP - 96
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1-2
ER -