Preparation method of molybdenum disulfide
The synthesis method can produce high purity, few impurities, and fine particle size and can prepare sulfides that meet different functional requirements. Therefore, nano-sulfide production using the synthesis method has always been of great concern. There are many methods to prepare nanometer MoS2, such as ammonium tetrathiomolybdate thermal decomposition, hydrogen sulfide or sulfur vapour reduction, high-energy ball milling, carbon nanotube space limitation, hydrothermal synthesis, a combination of particle physics and chemical methods, etc. Overall, there are two preparation methods: directly reacting a tungsten or molybdenum source with a sulfur source to obtain nano MoS2 or first reacting a tungsten or molybdenum source with a sulfur source to get a precursor and then decomposing or reducing the precursor to MoS2 through appropriate methods. Natural method: MoS2 can be prepared by the natural method, which is the purification method of molybdenite concentrate. This method involves removing acid-insoluble substances, SiO2, Fe, Cu, Ca, Pb, and other impurities from the molybdenite concentrate through specific physical and chemical reactions and further refining to obtain nano MoS2. Climax Molybdenum Company in the United States has adopted this method to produce MoS2. The nano MoS2 produced by this method can maintain the natural MoS2 crystal shape and has good lubrication performance, making it suitable for making lubricants. However, the purity of nano MoS2 produced by natural methods is low, and the purification technology still needs further improvement. When the temperature is below 400 ℃, it is recommended to use MoS2 with lower cost when working in ordinary atmospheres. It has lubrication ability below 1300 ℃, and it is recommended to use MoS2 at a lower cost. If you are looking for high quality, high purity and cost-effective molybdenum disulfide, or if you require the latest price of molybdenum disulfide, please feel free to email contact mis-asia.