Abstract
In this paper, the gaseous mixture (CH4, C2H2, H2 and O2) and ferrocene were used as raw materials to rapidly synthesize core-shell structure carbon/graphite encapsulated iron-based nanoparticles under high-temperatures and high-pressure environment generated by gaseous-liquid detonation. The obtained black powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) with selected area electron diffraction (SAED) and Raman spectroscopy. The results indicated that the uniformly sized (10–50 nm) iron-based core-shell structural composite nanoparticles were effectively synthesized by adjusting the mole ratios of mixture gaseous. In addition, the growth mechanism of carbon/graphite encapsulated metal nanoparticles was also discussed based on the ZND model theory.
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