Template synthesis and characterization of molybdenum disulfide nanotubules

Molybdenum disulfide nanotubules were prepared by thermal decomposition of ammonium thiomolybdate ((NH4)2MoS4) precursors on anodized aluminum oxide template. Large quantities of hollow MoS2 nanotubules with the bamboo-like structure were obtained. The morphology and structures of MoS2 tubules were characterized by scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive spectroscopy, electron diffraction and optical absorption spectroscopy. MoS2 nanotubules completely reflected the three-dimensional structure of nanopores in template. The properties of Mo–S chemical bonds in lattice structure and the wetting state between porous surface and precursor have a great effect on the formation of sections in nanotubules, the ridges in the nanopores also play a very special role of this formation.

The image is a SEM image of branched MoS2 nanotubes, which are prepared in AAO templates. It is obvious to observe the branch of MoS2 nanotubes (labeled by arrows), and it reflects the microcosmic morphologies of pores in templates.Figure optionsDownload as PowerPoint slideHighlights
► Large quantities of hollow MoS2 tubules.
► Explanation for the formation of branched shape.
► Explanation for the morphology of bamboo-like structure.