After a constant temperature was achieved, the molybdenum precursor (1.15 mL, 276 µmol) was added over 30 min using a syringe pump. After the first drops of precursor were added, a final color change to opaque black was immediately visible. The synthesis was continued at the same temperature for 30 minutes after the addition of the precursor and then quickly cooled to room temperature. After the reaction, the synthesized MoS2 nanosheets were precipitated by addition of 16 mL hexane and centrifugation at 3300 rcf for 10 minutes. The precipitate was redispersed in hexane and the centrifugation step was repeated two times. The entire precipitation was done under inert conditions and the sample was then stored dispersed in hexane and under nitrogen.