Abstract
Pristine and bismuth-doped nickel ferrite NiBixFe2-xO4 (x = 0, 0.05, 0.1) nanostructures are prepared using a novel citrate precursor method. The effect of doping on structural, morphological, functional, magnetic and electrochemical parameters is studied in this article. X-ray diffraction (XRD) results show phase purity and confirm the formation of the spinel phase of as prepared material. The crystallite size for all the prepared samples is found to be in the range of 30–35 nm. Fourier Transform Infrared (FTIR) and RAMAN spectroscopies are performed to reveal the types of bonds present. Metal-oxygen (M−O) bonds are investigated at the lower wavelengths. Furthermore, Scanning Electron Microscopy (SEM) reveals the formation of particles which are shown to be in the agglomerated form with an average particle size of 40–50 nm. Magnetic characteristics are investigated utilizing a Vibrating Sample Magnetometer (VSM), exhibiting the fascinating saturation magnetization > 35 emu/g for all the samples. Voltammetry studies revealed the excellent electrochemical properties of the prepared nanoferrites.
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