NDLI: Synthesis and characterization of NiO nanoparticles by sol

Content Provider	SpringerLink
Author	Alagiri, M. Ponnusamy, S. Muthamizhchelvan, C.
Copyright Year	2011
Abstract	Nickel oxide nanoparticles have been synthesized in the presence of agarose polysaccharide by sol–gel method. The structure, morphology, optical and magnetic properties of the product was examined by X-ray diffraction, transmission electron microscopy, UV–visible spectrophotometer and superconducting quantum interference device magnetometer. The result of thermogravimetric analysis of the precursor product showed that the proper calcination temperature was 400 °C. X-ray diffraction result revealed that the obtained product was nickel oxide with face-centered cubic structure. TEM image demonstrated that the nickel oxide nanoparticles have spherical shape with size around 3 nm. Analysis of FTIR spectra confirmed the composition of product. The optical absorption band gap of the NiO nanoparticles was estimated to be 3.51 eV. Magnetic measurement showed that the nickel oxide nanoparticles exhibit superparamagnetic behavior at 300 K. Moreover, the nanoparticles show ferromagnetic interactions at 4.2 K owing to the existence of uncompensated moments on the surface of the nanoparticles.
Starting Page	728
Ending Page	732
Page Count	5
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	23
Issue Number	3
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2011-08-11
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering Electronic, Optical and Magnetic Materials Bioengineering Condensed Matter Physics Biophysics Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering Biomaterials

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