Product Properties
Tungsten Sulfide (WS2) nanopowder/nanoparticles (nm & um)
Size | Type | Particle size（nm） | Purity（%） | Specific surface area（m2/g） | Bulk density（g/cm3） | Polymorphs | Color |
nm | JB-WS2-001 | 40 | 99.9 | 34.71 | 1.102 | subglobular | black |
sub um | JB-WS2-002 | 700 | 99.9 | 10.32 | 1.940 | sheet | gray black |
Custom | Acccording to customers requirment. | ||||||
Tungsten Sulfide (WS2) Main Feature
WS2 is known for its exceptionally low friction coefficient, making it an excellent solid lubricant. This property is particularly useful in applications requiring lubrication under extreme conditions, such as high vacuum, high temperature, or where liquid lubricants would fail.It exhibits excellent chemical stability, resisting oxidation and corrosion in various environments. This stability is crucial for applications in chemically aggressive conditions.In its monolayer form, WS2 transitions from an indirect to a direct bandgap semiconductor, making it highly interesting for optoelectronic applications, including photodetectors, light-emitting diodes (LEDs), and photovoltaic cells.Despite its excellent lubricating properties, WS2 also possesses high mechanical strength, especially in its bulk form, contributing to its durability in applications as a lubricant and beyond.
Tungsten Sulfide (WS2) Nanopowder Applications
- Solid Lubricants: Utilized as a dry lubricant in situations where liquid lubricants are impractical, such as in space applications, high vacuum environments, and in high-temperature conditions.
- Protective Coatings: Applied on various surfaces to enhance wear resistance and reduce friction, benefiting tools, gears, and other mechanical components.
- Field-Effect Transistors (FETs): WS2 nanopowder is used in the production of transistors for electronics, exploiting its semiconducting properties and high electron mobility.
- Photodetectors and Sensors: Its sensitivity to light makes WS2 an excellent material for photodetectors and sensors, particularly in applications requiring high sensitivity across a broad spectrum.
- Light-Emitting Diodes (LEDs) and Lasers: The direct bandgap of monolayer WS2 enables its use in LEDs and lasers, offering efficient light emission.
- Hydrogen Evolution Reaction (HER) Catalysts: WS2 is explored for its photocatalytic and electrocatalytic properties in splitting water to produce hydrogen, a clean energy carrier.