A Novel Approach to Synthesis of FePt Magnetic Nanoparticles
Chemical reduction of ferric acetylacetonate (Fe(acac)3) and platinum acetylacetonate (Pt(acac)2) using polyol as a reducing agent as well as an effective surfactant, has successfully yielded monodisperse FePt nanoparticles with a size of approximately 2 nm. When annealed samples were compared to FePt nanoparticles synthesized using oleic acid and oleylamine as the surfactants under identical conditions, nearly 30% increase in coercivity (Hc) was achieved with the new, simple and economic method.
K. E. Elkins et al., "A Novel Approach to Synthesis of FePt Magnetic Nanoparticles", Journal of Nano Research, Vol. 1, pp. 23-30, 2008