Synthesis and Properties of Nickel Nanoparticles and Their Nanocomposites

S. V. Gornostaeva*, A. A. Revina**, L.D. Belyakova**, and O. G. Larionov**

*Mendeleev University of Chemical Engineering, Miusskaya pl. 9, Moscow, 125057 Russia

**Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr, 31, Moscow,

119991 Russia

Received July 2, 2007

Abstract — For the first time, nickel nanoparticles are synthesized in reverse micelles by a radiation-chemical method. The particles are shown to be spherical with sizes of an order of magnitude of 1–100 nm. Nickel particles are oxidized by air oxygen to nickel oxide nanoparticles, retaining their shape and nanoscale dimensions. Adsorption of nickel-metal nanoparticles on silica is studied by spectrophotometry.

PACS numbers: 68.43.-h