Why is it in the news?
→ Scientists developed an electronic system using atom-thin molybdenum disulfide that resists high-energy particle damage.
Category: S&T
Important Points
- Chemical formula MoS₂, composed of molybdenum and sulfur.
- Occurs naturally as mineral molybdenite.
- It belongs to transition metal dichalcogenides (TMDCs).
- Has hexagonal layered crystal structure similar to graphite.
- Appears as dark, shiny solid in bulk form.
- Sublimes at around 450 °C, aiding purification.
- Acts as excellent solid lubricant due to layered structure.
- Also functions as a semiconductor.
- Works as a lubricant up to 350 °C in oxidizing and 1100 °C in non-oxidizing environments.
- Highly resistant to oxidation and corrosion.
- Used in aerospace coatings, two-stroke engines, and gun barrels.