Magnetic Nanoparticles Stabilized in Layered Double Hydroxides

摘要

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 Ni_3C particles of much larger sizes. Magnetic measurements were used to detect superparamagnetic behaviour of the nickel phase.