Synthesis and Structure of Fe-Fe3O4 Nanoparticles with “Core-Shell” Architecture Capsulated in a Graphite-Like Carbon Matrix

Nanoparticles of iron (α-Fe) and iron oxide (Fe 3 O 4 ) with a core-shell structure (α-Fe core, Fe 3 O 4 shell) covered with additional graphite-like carbon layer have been synthesized. The samples were obtained by solid-phase pyrolysis of iron phthalocyanine (FePc) at a pyrolysis temperature of 100...

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Veröffentlicht in:	Journal of contemporary physics 2021-04, Vol.56 (2), p.150-153
Hauptverfasser:	Gyulasaryan, A. T., Castillo, K. A., Bernal, O. O., Kocharian, A. N., Sisakyan, N., Chilingaryan, G. K., Veligzhanin, A. A., Gray, J. L., Sharoyan, E. G., Manukyan, A. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon Core-shell structure Graphite Iron oxides Metal phthalocyanines Morphology Nanoparticles Particle and Nuclear Physics Physics Physics and Astronomy Pyrolysis Raman spectroscopy Scanning transmission electron microscopy Shells Solid phases Synchrotron radiation Synchrotrons
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Zusammenfassung:	Nanoparticles of iron (α-Fe) and iron oxide (Fe 3 O 4 ) with a core-shell structure (α-Fe core, Fe 3 O 4 shell) covered with additional graphite-like carbon layer have been synthesized. The samples were obtained by solid-phase pyrolysis of iron phthalocyanine (FePc) at a pyrolysis temperature of 1000°C, followed by annealing in an oxygen atmosphere at a temperature of 250°C. The composition, structure and morphology of the samples were investigated by transmission and scanning transmission electron microscopy with elemental mapping, synchrotron X-ray diffraction and Raman spectroscopy.
ISSN:	1068-3372 1934-9378
DOI:	10.3103/S1068337221020079