Effect of Surfactants on Structural and Dielectric Properties of Cobalt Ferrite

Abstract:

Cobalt ferrite (Cofe₂o₄) particles were synthesized with and without presence of surfactants using a co-precipitation method. Three surfactants Cetyl Tri methyl Ammonium Bromide (CTAB-cationic), Sodium dodecylbenzenesulphonate (anionic), Triton X-100 (nonionic), were used and investigate their effects on the structural and dielectric properties of CoFe₂O₄ particles. The ferrite precursors were first pre calcined in a muffle furnace at 500°C and then calcined at 950^°C. Structural, dielectric and magnetic properties of prepared particles were investigated using X-ray powder diffraction, Dielectric and Low field ac magnetic susceptibility measurement. Phase purity of prepared samples was confirmed by X-ray diffraction. The sample with surfactant Triton X-100 shows the highest values of dielectric constant at low frequency.

• Periodical: Advanced Materials Research (Volume 938)
• Pages: 14-18
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.938.14
• Online since: June 2014
• Authors: Hemal Khatri*, G. Packiaraj, Rajshree B. Jotania
• Keywords: Cobalt Ferrites, Co-Precipitation Method, Spinel Ferrite, Surfactant, X-Ray Diffraction (XRD)

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