10.57647/

Thermal synthesis of Hematite nanoparticles: Structural, magnetic and morphological characterizations

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  • Subhas Chandra Tudu1,
  • Maciej Zubko2,
  • Joachim Kusz1,
  • Varimalla Raghavendra Reddy3,
  • Alok Banerjee4,
  1. Department of Physics, Visva-Bharati University, Santiniketan –731235, India.
  2. Institute of Physics, University of Silesia, Katowice, Poland.
  3. UGC-DAE Consortium for Scientific Research, Mossbauer and MOKE laboratory, Indore, India.
  4. Department of Physics, Institute of Science, Visva-Bharati University, Santiniketan, 731235, India.

Published in Issue 2024-02-07

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How to Cite

Tudu, S. C., Zubko, M., Kusz, J., Raghavendra Reddy, V., & Banerjee, A. (2024). Thermal synthesis of Hematite nanoparticles: Structural, magnetic and morphological characterizations. International Journal of Nano Dimension, 11(2). https://doi.org/10.57647/
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Abstract

Hematite (α-Fe2O3) nanoparticle was synthesized using organometallic compound - ferrocene carboxaldehyde through solventless solid state thermal decomposition technique. The crystal structure, magnetic and morphological properties of the decomposed material were studied using powder X-ray diffraction (XRD), superconducting quantum interference device (SQUID) magnetometry, 57Fe Mössbauer spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX) techniques. Structural study confirmed that the synthesized material is hematite with hexagonal phase and good crystallinity. The temperature-dependent magnetization measurement exhibited the Morin transition - the yardstick for hematite formation. Mössbauer spectroscopic study confirmed the purity of phase of the synthesized material. The SEM study observed mostly the agglomerated tiny particles along with some ring-shaped surface structures. The TEM study of the synthesized material showed that the highest distribution of the particles with ~5 nm size. The observed EDX spectra confirmed the existence of Fe and O in the synthesized material. The solid state reaction process leading to hematite on decomposition of ferrocene carboxaldehyde has also been proposed. Present study describes a simple process for the preparation of pure hematite nanoparticle by solventless method.

Keywords

  • Characterization,
  • Ferrocene Carboxaldehyd,
  • Hematite,
  • Nanoparticle,
  • Thermal Synthesis
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