http://hdl.handle.net/20.500.12128/17711
Title: | Thermal synthesis of Hematite nanoparticles : structural, magnetic and morphological characterizations |
Authors: | Dey, Anubha Zubko, Maciej Kusz, Joachim Reddy, Varimalla Raghavendra Banerjee, Alok Bhattacharjee, Ashis |
Keywords: | characterization; Ferrocene Carboxaldehyde; Hematite; Nanoparticle; Thermal Synthesis |
Issue Date: | 2020 |
Citation: | "International Journal of Nano Dimension" (2020), iss. 2, s. 188-198 |
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. |
URI: | http://hdl.handle.net/20.500.12128/17711 |
ISSN: | 2228-5059 |
Appears in Collections: | Artykuły (WNŚiT) |
File | Description | Size | Format | |
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Dey_Zubko_thermal_synthesis_of_hematite.pdf | 1,41 MB | Adobe PDF | View/Open |
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