Solid state molybdenum carbide nanomotors driven via high temperature carbon-decomposition catalytic reactions

The motion of solid state nanomotors, i.e., molybdenum carbide nanoparticles, which were driven via carbon-decomposition catalytic reactions at similar to 2900 K, was directly observed by in situ transmission electron microscopy. The nanomotors exhibited unidirectional linear motions inside the hollow space of multiwall carbon nanotubes, reciprocating motions around the nanotube endcaps, and rotational motions in the hollow spaces of carbon nanocapsules. The inner atomic wall-layers of carbon nanotubes and nanocapsules were consumed during the nanomotor motions.

Automated summary

The motion of molybdenum carbide nanoparticles driven by carbon-decomposition catalytic reactions was observed in various nanomaterials, including multiwall carbon nanotubes and carbon nanocapsules. The nanomotors exhibited different types of motions and resulted in the consumption of the inner atomic wall-layers of the nanomaterials.