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Title: Synthesis of nanocrystalline NiO by sol-gel and homogeneous precipitation methods
Authors: Jeevanandam, P
Pulimi, V Ranga Rao
Keywords: Nanocrystalline Materials
Nickel Oxide
Sol-gel process
Homogeneous precipitation
Issue Date: Apr-2012
Publisher: NISCAIR-CSIR, India
Abstract: Nanocrystalline nickel oxide has been prepared via thermal decomposition of precursors obtained using two methods, sol-gel process and homogeneous precipitation. The precursors and the oxide obtained by calcination are characterized by various analytical techniques such as powder X-ray diffraction, thermal gravimetric analysis, FT-IR spectroscopy, surface area measurements, scanning electron microscopy, transmission electron microscopy and magnetic measurements. The crystallite size of nickel oxide prepared from homogeneous precipitation method is ~ 2 nm whereas that of the nickel oxide prepared from sol-gel process is about 19 nm. The nanocrystalline NiO samples obtained by both the methods exhibit superparamagnetic behavior.
Description: 586-590
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.51A(04) [April 2012]

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