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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 29, Number 8
BKCSDE 29(8)
August 20, 2008

Title	Synthesis and Magnetic Properties of Dendron Capped Fe₂O₃ Nanoparticles
Author	Sheby M. George, In Seok Hong, Jinkwon Kim*
Keywords	Fe₂O₃, Magnetic nanoparticles, Superparamagnetic, Magnetization measurement, Dendron
Abstract	Using a one-pot reaction technique, monodisperse γ-Fe₂O₃ nanoparticles were prepared by thermal decomposition of Fe(CO)₅ in the presence of a long alkyl chain terminated dendron surfactant. The size of the particles is controlled by adjusting the concentration of the dendron ligands in the reaction solution. Spherical, 2 nm sized nanoparticles were obtained with a 3:1 ratio of dendrons to Fe(CO)₅, while 4.6 nm sized particles were formed with a 1:3 ratio. Superparamagetic properties of 2 nm, 4 nm, and 4.6 nm sized particles were measured using a SQUID magnetometer.
Page	1545 - 1553
Full Text	PDF

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