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http://dx.doi.org/10.5012/bkcs.2008.29.8.1545

Synthesis and Magnetic Properties of Dendron Capped Fe2O3 Nanoparticles  

George, Sheby M. (Department of Chemistry, College of Natural Sciences, Kongju National University)
Hong, In-Seok (Department of Chemistry, College of Natural Sciences, Kongju National University)
Kim, Jin-Kwon (Department of Chemistry, College of Natural Sciences, Kongju National University)
Publication Information
Bulletin of the Korean Chemical Society / v.29, no.8, 2008 , pp. 1545-1553 More about this Journal
Abstract
Using a one-pot reaction technique, monodisperse $\gamma-Fe_2O_3$ 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.
Keywords
Fe2O3; Magnetic nanoparticles; Superparamagnetic; Magnetization measurement; Dendron
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