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The structure and formation mechanism of FeS2/Fe3S4/S8 nanocomposite synthesized using spherical shaped Fe3O4 nanoparticles as the precursor

  • Adrian Radoń and Dariusz Łukowiec
Published/Copyright: January 11, 2019
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 110 Issue 1

Abstract

Synthesis of a nanocomposite containing iron sulfides and sulfur was carried out in ethylene glycol. Spherical-shaped Fe3O4 nanoparticles were used as the precursor. The structure of the FeS2/Fe3S4/S8 nanocomposite, as well as the mechanism of formation, are described with X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy, and Fourier transform infrared spectroscopy. Strong interaction between sulfur and oxygen was confirmed. Formation of the FeS2/Fe3S4/S8 nanocomposite was associated with the reaction between Fe3O4 and H2S, and the reaction between greigite and H2S produced by the decomposition of thioacetamide. Highly crystalline pyrite was formed in these reactions, while the sulfur and greigite appearing on the edges formed a highly disordered structure.

Keywords: Nanocomposite; Pyrite nanoparticles; Greigite nanoparticles; Thioacetamide; Formation mechanism
*Correspondence address, Dariusz Łukowiec, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18 a St., 44–100 Gliwice, Poland, Tel.: +48322372281, E-mail:

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Received: 2017-11-13
Accepted: 2018-03-19
Published Online: 2019-01-11
Published in Print: 2019-01-09

© 2019, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111670
Keywords for this article
Nanocomposite; Pyrite nanoparticles; Greigite nanoparticles; Thioacetamide; Formation mechanism

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. XVI International Conference on Electron Microscopy
  5. Original Contributions
  6. Application of analytical electron microscopy and FIB-SEM tomographic technique for phase analysis in as-cast Allvac 718Plus superalloy
  7. Microstructure and properties of laser interference crystallized amorphous FeSiB ribbon
  8. Analysis of amorphous regions in severely marformed NiTi shape memory alloy
  9. Structure of MgLiAl alloys after various routes of severe plastic deformation studied by TEM
  10. Microstructure and selected mechanical and electrical property analysis of Sr-doped LaCoO3 perovskite thin films deposited by the PLD technique
  11. Microstructure of an oxide scale formed on ATI 718Plus superalloy during oxidation at 850 °C characterised using analytical electron microscopy
  12. Effect of powder morphology on the microstructure and properties of cold sprayed Ni coatings
  13. Microstructure of Ti/Al multilayer foils ignited with electric current
  14. Evolution of γ′ morphology and γ/γ′ lattice parameter misfit in a nickel-based superalloy during non-equilibrium cooling
  15. Effect of heat treatment on the precipitation hardening in FeNiCoAlTaB shape memory alloys
  16. The structure and formation mechanism of FeS2/Fe3S4/S8 nanocomposite synthesized using spherical shaped Fe3O4 nanoparticles as the precursor
  17. Short Communications
  18. Characterization of Inconel 625 surface layer modified by laser shock processing
  19. DGM News
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