Figure 3.

The MoS2 nanotubes: a A typical TEM image of a bunch of nanotubes grown from sacrificed Mo6S4I6 nanowires keeping their outer geometry; and b self-organization in hedgehock-like groups revealed by SEM; c HRTEM image of a nanotube's wall with resolved MoS2 molecular layers, stacking faults and atomically rough surface; d TEM image of a single nanotube cap of a nanotube with inner cylinders terminated by curved layers of outer cylinders.

Remskar et al. Nanoscale Res Lett 2011 6:26   doi:10.1007/s11671-010-9765-0