Abstract
Urchin-like Co2C/Co3C hybrid nanoparticles were fabricated via a one-pot template-free solvothermal approach. Morphologies, structures and magnetic properties of the urchin-like Co2C/Co3C hybrid nanoparticles were investigated through different analytical tools. Our results indicated that Co2C nanoparticles are encapsulated in Co3C nanosheets, forming core–shell structured Co2C/Co3C nanourchins. Magnetic assay revealed that the urchin-like Co2C/Co3C hybrid nanoparticles were ferromagnetic with a saturation magnetization of 75.9emug−1. This work not only gives new insight into the fabrication of urchin-like Co2C/Co3C hybrid nanoparticles but also opens the way for the controllable synthesis of other transition metal carbides nanoparticles for diverse application requirements.
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