A Simple Chemical Route toward Monodisperse Iron Carbide Nanoparticles Displaying Tunable Magnetic and Unprecedented Hyperthermia Properties

作者：Meffre Anca; Mehdaoui Boubker; Kelsen Vinciane; Fazzini Pier Francesco; Carrey Julian; Lachaize Sebastien; Respaud Marc^*; Chaudret Bruno

来源：Nano Letters, 2012, 12(9): 4722-4728.

DOI：10.1021/nl302160d

• Magnetic nanoparticles
• iron carbides
• iron
• core/shell
• hyperthermia
• organometallic chemistry

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)(5) on Fe(0) seed:, 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.

• 出版日期2012-9