A Simple Electrochemical Fabrication and Characterization of Superparamagnetic Composite of Nickel Doped Iron Oxide/Carbon Nanoparticles

In this research, composite of metal ion doped Fe3O4 nanoparticles/carbon are prepared via cathodic electrochemical synthesis for the first time. The carbon dispersed aqueous solution of iron(III) nitrate, iron(II) chloride and nickel nitrate was used as the deposition electrolyte. The synthesis was done with applying 10 mA cm-2 at RT conditions. The prepared composite were characterized through XRD, IR, SEM and VSM analyses. The particle morphology, carbon content and metal ion doping were verified by SEM observations and energy-dispersive X-ray spectroscopy. XRD and IR data confirmed that the fabricated composite has magnetite crystal structure. The magnetic data of Ms=54.83emu g–1, Mr=0.43 emu g–1 and Hci=9.26 G, obtained by VSM analysis, proved the superparamagnetic nature of the fabricated composite.