Abstract:Molybdenum phosphide (MoP) is successfully prepared by a facile 2-step process. First as precursor, nano metal Mo-powders were prepared via DC arc plasma method, which then react with red phosphorus through solid-phase reaction to yield MoP nanoparticles. The prepared MoP nanoparticles were further characterized by means of XRD and TEM. Results show that the MoP nanoparticles are spherical with particle diameter of 20-50 nm. As the anode material for lithium-ion batteries, MoP nanoparticles deliver the initial discharge capacity of 746 mAh/g at the current density of 100 mA/g and the capacity maintains at 241.9 mAh/g after 50 charge-discharge cycles. As the current density increased to 2000 mA/g the discharge capacity decreases to 99.90 mAh/g. The constant capacity of 247.60 mAh/g can be restored when the current density is back to 100 mA/g.
DOI:10.11901/1005.3093.2017.793