Investigation and Structural Characterization of Nickel Ferrite Nanoparticles Produced by Proteic Sol-Gel Method Using Two Kinds of Organic Precursors

Abstract:

Metallic oxide materials with AB₂O₄ structure are very interesting for technological applications. Nickel ferrite (NiFe₂O₄), for example, attracts considerable attention due to its chemical stability and mechanical hardness. These characteristics make it a suitable material for magnetic and magneto-optical applications. The properties of NiFe₂O₄ have a strong dependence on the crystallite size and microstructure. Due to this dependence, it is necessary to develop effective methods that allow controlling these variables. The aim of this work is to investigate the effect of time, temperature of isothermal treatment and choice of organic precursor during the production of NiFe₂O₄ samples employing the proteic sol-gel method have on crystallite size and microstructure. Two kinds of organic precursors were used: coconut water and pectin extracted from aple peel. Temperatures of 873 and 1173 K; 2, 4, 6, 8, 24 and 30 hours of isothermal treatment were also used. The samples produced were analyzed employing X-ray Diffraction.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 1574-1578
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.1574
• Online since: August 2012
• Authors: José Rafael C. Proveti, Paulo Sergio da Silva Porto, E.P. Muniz, R.D. Pereira, L.C.A. Gobbi
• Keywords: Nickel Ferrite, Pectin, X-Ray Diffraction (XRD)

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DOI: 10.47593/2675-312x/20213404eabc215

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