Synthesis of MoS2 and MoO3 hierarchical nanostructures using a single-source molecular precursor

• Synthesis of nanostructured MoS2 and α-MoO3 using single-source molecular precursor.
• The obtained products were characterized by XRD, XPS, Raman and FESEM.
• Direct pyrolysis of ammonium peramolybdate produced only irregular MoO3.

MoS2 nanoflake clusters were synthesized via hydrothermal treatment of an air-stable, easily obtained single-source molecular precursor (molybdenum diethyldithiocarbamate oxide, Mo((C2H5)2NCS2)2O2) in deionized water at 200 °C for 24 h; and orthorhombic phase MoO3 (α-MoO3) nanoplate clusters were obtained by heating MoS2 nanoflake clusters in air at 350 °C for 5 h. The obtained products were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and field emission scanning electronic microscopy. Besides, the comparative synthesis experiment by direct pyrolysis of ammonium peramolybdate suggested that MoS2 nanoflake clusters might play a template role in the formation of α-MoO3 nanoplate clusters.

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