Synthesis and study of magnetic properties of high temperature stable Ni nanoparticles in a nearly amorphous AlPO sub(4) matrix in an oxidative atmosphere

Graphitized carbon coated Ni nanoparticles were synthesized in an AlPO sub(4) matrix in situin an oxidative atmosphere without using any foreign reducing agent. The Ni nanoparticles were evenly distributed in an inactive AlPO sub(4) matrix and protected from the oxidation in air up to 900 degree C....

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2014-06, Vol.2 (26), p.5142-5148
Main Authors: Maharana, Rajalaxmi, Raja, MManivel, Prasad, VVBhanu, Paik, Pradip, Roy, Subir
Format: Article
Language:English
Subjects:
Carbon
Coating
Magnetic properties
Magnetization
Nanoparticles
Nickel
Roasting
Synthesis
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Summary:Graphitized carbon coated Ni nanoparticles were synthesized in an AlPO sub(4) matrix in situin an oxidative atmosphere without using any foreign reducing agent. The Ni nanoparticles were evenly distributed in an inactive AlPO sub(4) matrix and protected from the oxidation in air up to 900 degree C. Carbon coating over the nanoparticles remained intact even when the samples were calcined at 900 degree C in air. Magnetization of the Ni nanoparticles in the composite approached similar to 89% of their bulk magnetization value when calcined at 900 degree C in air. Magnetization increased with increasing the calcination temperature up to 900 degree C.
ISSN:2050-7526
2050-7534
DOI:10.1039/c4tc00604f