ABSTRACT
Iron oxide nanoparticles are suitable for many applications, including catalysis, high density data storage and magnetic resonance imaging (MRI). As with all nanoparticles, the high surface area to volume ratio can lead to enhanced and often modified surface effects. For example, iron nanoparticles with diameters of-3nm have more than 50% of their atoms at the surface of the particle [1]. Nanoparticles are known to be more reactive than microparticles due to the higher relative concentration of crystallographic areas where atoms exist with low co-ordination numbers. Iron oxide nanoparticles are known to be superparamagnetic, and there is great interest in characterising their properties.
