Abstract
A mass of carbon nanospheres (CNSs) have been synthesized by chemical vapor deposition of C2H2 directly over Fe-based glassy alloy particles (Fe76Si9B10P5) without the addition of an external catalyst. The morphology and microstructure as well as the growth mechanism of the CNSs have been investigated by using scanning and transmission electron microscopy. The results showed that the obtained products consist of hollow CNSs and CNSs with Fe nanoparticles encapsulated. The CNSs with amorphous walls have high purity (>95%) and uniform size distribution (50–150nm). The possible formation and growth mechanism of the CNSs were discussed on the basis of the investigation on their initial growth stages.
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