Synthesis and Characterization of Fe-Fe<sub>3</sub>O<sub>4</sub> “Core-Shell” Nanoparticles in carbon matrix

POSTER

Abstract

Carbon coated Fe nanoparticles have been synthesized using solid-phase pyrolysis of iron phthalocyanine (FeC32H16N8) at high temperature (1000°C). The product of pyrolysis additionally annealed at 250°C under the oxygen media allows to produce Fe3O4 shell architecture over Fe nanoparticles. The weight percentage of Fe-Fe3O4 core-shell nanoparticles in carbon matrix is about 13 wt.%. Changing the pyrolysis conditions, it is possible to vary sizes of nanoparticles from 5 to 100 nm. The quantitative composition of the "core-shell" was controlled by changing the concentration of oxygen. Complex structural investigations of these materials are obtained using HRTEM, STEM, X-ray diffraction (XRD) and Raman spectrometers.

*This work was supported by a grant from the Russian-Armenian (Slavonic) University at the expense of the Ministry of Education and Science of the Russian Federation. The work at CSULA was supported by the NSF CREST programs under Grant #HRD-1547723.

Presenters

  • Luis Fernando Valencia

    • California State University, Los Angeles

Authors

  • Gayane Chilingaryan

    • Russian-Armenian (Slavonic) University

  • Narek Sisakyan

    • Solid State Laboratory, Institute for Physical Research of NAS of Armenia

  • Armine Ginoyan

    • Russian-Armenian (Slavonic) University

  • Eduard Sharoyan

    • Solid State Laboratory, Institute for Physical Research of NAS of Armenia

  • Harutyun Gyulasaryan

    • Russian-Armenian (Slavonic) University
    • Sold State Lab, Institute for Physical Research of National Academy of Sciences (IPR-NAS)

  • Aram Manukyan

    • Russian-Armenian (Slavonic) University
    • Sold State Lab, Institute for Physical Research of National Academy of Sciences (IPR-NAS)

  • Luis Fernando Valencia

    • California State University, Los Angeles

  • Jennifer Gray

    • Materials Characterization Lab, PennState Materials Research Institute

  • Kevin Castillo

    • California State University, Los Angeles

  • Armen Kocharian

    • California State University, Los Angeles