Magnetic Properties of the Cobalt Ferrous Spinel Ferrite Nanoparticles Formed on the Steel Surface Contacting with Cobalt Chloride Water Solutions in Open-air System

摘要

The paper describes creation of cobalt ferrous spinel ferrite nanoparticles and investigation of theirudphase composition, surface structure and magnetic properties. Cobalt ferrous spinel ferrite nanoparticlesudwere synthesized in an aerated system of steel electrode contacting with aqueous cobalt chloride at differentudpH values of solution. According to X-Ray diffraction data, it was shown, that some impurity phases alsoudformed during the synthesis process, notably, lepidocrocite and goethite on the steel surface and GreenudRust I, cobalt hydroxide, heterohenite in the solution. The quantity of such phases depends on pH value ofudinitial solution. The size of synthesized cobalt ferrous spinel ferrite nanoparticles was approximately 10 –ud12 nm. Saturation magnetization of synthesized cobalt ferrous spinel ferrite nanoparticles is rather high.udSynthesized magnetic cobalt ferrous spinel ferrite nanoparticles are promising for different medicalbiologicaludapplications.When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35307