Hydrothermal Synthesis of MoS2 and Its Pressure-Related Crystallization

Crystalline, poorly crystalline, and single-layer MoS2 were synthesized using a hydrothermal method at low temperature (170–200°C) through changing pressure and time. XPS, XRD, and TEM were used to study the products. It was found that the stacking of the single layers was closely related to the pressure in the autoclave. A model was presented to explain this phenomenon.