Water-assisted and controllable synthesis of core/shell/shell structured carbon-based nanohybrids, and their magnetic and microwave absorption properties.

ABSTRACT: By controlling the pyrolysis temperature, core/shell/shell structured Fe/Fe₅C₂/carbon nanotube bundles (Fe/Fe₅C₂/CNTBs), Fe/Fe₃C/helical carbon nanotubes (Fe/Fe₃C/HCNTs) and Fe/Fe₃C/chain-like carbon nanospheres (Fe/Fe₃C/CCNSs) with high encapsulation efficiency could be selectively synthesized in large-scale by water-assisted chemical vapor deposition method. Water vapor was proved to play an important role in the growth process. Because of α-Fe nanoparticles tightly wrapped by two layers, the obtained core/shell/shell structured nanohybrids showed high stabilities and good magnetic properties. The minimum reflection loss values of the as-prepared nanohybrids reached approximately -15.0, -46.3 and -37.

SUBMITTER: Qi X 

PROVIDER: S-EPMC5575045 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature