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<p>The Mn<sub><i>x</i></sub>Ni<sub>1−<i>x</i></sub>Fe<sub>2</sub>O<sub>4</sub> (<i>x</i> = 0.5, 0.7, and 0.9) polycrystalline Nano ferrite samples have been successfully synthesized by Sol-Gel method. The Rietveld Refinement of the X-ray pattern for all samples suggests that there are no other impurity phases in all the samples. The Debye Scherrer formula confirms that the size of the samples exists in nano regime (~2.5 to 2.8&#xa0;nm). The elemental confirmation of all the samples has been done using the Energy Dispersive Spectra (EDAX). Transmission Electron Microscopy (TEM) was employed to examine the microstructural features, revealing well-defined grain boundaries and uniform particle size distribution. Energy Dispersive X-ray Spectroscopy (EDS) integrated with TEM verified the successful incorporation of Mn ions into the Ni lattice. Fourier Transform Infrared (FTIR) spectroscopy was employed to investigate the functional groups and bonding interactions within the doped samples. The FTIR spectra revealed characteristic absorption bands corresponding to Ni-O and Mn-O vibrations, confirming the successful incorporation of Mn into the Ni lattice. Raman spectroscopy reveals distinct vibrational modes indicative of lattice distortions and electron-phonon interactions induced by Mn doping. These results correlate with changes in electronic band structure, observed through UV–Vis. UV spectroscopy gives the band gap of all three samples in the range of 2.07–2.18&#xa0;eV with the increasing doping of manganese ions. PL spectroscopy suggests about the luminescence in the visible range and deconvoluted spectra give information about the emission of light. X-ray photoelectron spectroscopy (XPS) has been utilized to examine information about the chemical composition and oxidation states of all the samples. PL spectroscopy suggests about the luminescence in the visible range and deconvoluted spectra give information about the emission of light.</p>

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Multifaceted characterization of Mn-Doped nanocrystalline NiFe2O4 ferrites

  • 期刊论文

  • 发表日期：

    2025年10月24日

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  • Sarita,
  • Anchal,
  • S. R. Choudhary,
  • Yashpal Choudhary,
  • Pankaj Kumar Bhamu,
  • Jyotsana Pandey,
  • M. Sterlin Leo Hudson,
  • S. N. Dolia,
  • P. A. Alvi,
  • B. L. Choudhary

摘要

The MnxNi1−xFe2O4 (x = 0.5, 0.7, and 0.9) polycrystalline Nano ferrite samples have been successfully synthesized by Sol-Gel method. The Rietveld Refinement of the X-ray pattern for all samples suggests that there are no other impurity phases in all the samples. The Debye Scherrer formula confirms that the size of the samples exists in nano regime (~2.5 to 2.8 nm). The elemental confirmation of all the samples has been done using the Energy Dispersive Spectra (EDAX). Transmission Electron Microscopy (TEM) was employed to examine the microstructural features, revealing well-defined grain boundaries and uniform particle size distribution. Energy Dispersive X-ray Spectroscopy (EDS) integrated with TEM verified the successful incorporation of Mn ions into the Ni lattice. Fourier Transform Infrared (FTIR) spectroscopy was employed to investigate the functional groups and bonding interactions within the doped samples. The FTIR spectra revealed characteristic absorption bands corresponding to Ni-O and Mn-O vibrations, confirming the successful incorporation of Mn into the Ni lattice. Raman spectroscopy reveals distinct vibrational modes indicative of lattice distortions and electron-phonon interactions induced by Mn doping. These results correlate with changes in electronic band structure, observed through UV–Vis. UV spectroscopy gives the band gap of all three samples in the range of 2.07–2.18 eV with the increasing doping of manganese ions. PL spectroscopy suggests about the luminescence in the visible range and deconvoluted spectra give information about the emission of light. X-ray photoelectron spectroscopy (XPS) has been utilized to examine information about the chemical composition and oxidation states of all the samples. PL spectroscopy suggests about the luminescence in the visible range and deconvoluted spectra give information about the emission of light.