Magnetic nanoparticles stabilized in layered double hydroxides

The morphological and magnetic properties of nickel nanoparticles have been investigated. The particles were prepared by thermal decomposition in vacuum of a nickel complex [Ni(edta)]2 intercalated into Li/Al layered double hydroxide (LDH). It has been shown that this complex without templating within an LDH matrix gives rise to Ni3C particles of much larger sizes. Magnetic measurements were used to detect superparamagnetic behaviour of the nickel phase