A Simple Chemical Route
toward Monodisperse Iron Carbide
Nanoparticles Displaying Tunable Magnetic and Unprecedented Hyperthermia
Properties
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Abstract
We report a tunable organometallic synthesis of monodisperse
iron
carbide and core/shell iron/iron carbide nanoparticles displaying
a high magnetization and good air-stability. This process based on
the decomposition of Fe(CO)<sub>5</sub> on Fe(0) seeds allows the
control of the amount of carbon diffused and therefore the tuning
of nanoparticles magnetic anisotropy. This results in unprecedented
hyperthermia properties at moderate magnetic fields, in the range
of medical treatments