Large-scale and morphology-controlled synthesis of nano-sized molybdenum disulphide particles by different sulphur sources

摘要

The decomposition of MoS_3 prepared from different sulphur sources is a very convenient method to synthesize nano-MoS_2. It was found the sulphur sources had an obvious influence on the MoS_3 morphology and size. M0S3 from CH3CSNH2 contained hollow nano-balls or solid nanoparticles, while that from Na_2S comprised microparticles. Heating the obtained M0S3 hollow nano-balls and solid nanoparticles under H_2, respectively, led to ～150 nm MoS_2 nano-balls and -40 nm MoS_2 nanoparticles. However, Calcining the micro-MoS_3 from Na_2S under H_2 produced ～30 nm MoS_2 nanoslices. The all obtained MoS_2 samples represented a typical layered structure.