Molybdenum Disulfide (MoS₂) Nanopowder / Nanoparticles (99.9%, 100 nm, Black)

Description

Molybdenum Disulfide (MoS₂) Nanopowder / Nanoparticles (99.9%, 100 nm, Black)

Molybdenum Disulfide (MoS₂) nanoparticles are advanced nanomaterials with unique layered crystal structure that gives them outstanding lubrication, catalytic, and electronic properties. Produced with 99.9% purity and an average particle size of 100 nm, these nanoparticles have a spherical–flaky morphology, a black/dark gray appearance, and a true density of 4.8 g/cm³.

MoS₂ is widely recognized as a solid lubricant due to its very low friction coefficient (0.03–0.05), high adhesion to metal surfaces, and excellent chemical and thermal stability. Compared to conventional MoS₂ powders, nano-MoS₂ exhibits enhanced friction reduction, catalytic performance, and adsorption capacity, making it highly valuable in aerospace, automotive, petrochemical, and advanced material applications.

Technical Properties

• Chemical Formula: MoS₂

• Purity: 99.9%

• Average Particle Size (APS): 100 nm (TEM tested)

• Color: Black / Dark gray

• Morphology: Spherical–flaky

• Density: 4.8 g/cm³

• Melting Point: 1185 °C (sublimation at 450 °C)

• CAS Number: 1317-33-5

• Mohs Hardness: 1–1.5

• Friction Coefficient: 0.03–0.05

Certificate of Analysis (wt%)

Al: 0.002 | Fe: 0.003 | Ca: 0.001 | Mg: 0.001 | Cu: 0.01 | Mn: 0.01 | Na: 0.02 | Co: 0.002 | Ni: 0.003 |
Si: 0.004 | Pb: 0.001 | K: 0.005 | N: 0.006 | C: 0.003 | F.S: 0.007 | O: 0.008 | MoS₂: 99.9% | APS: 100 nm

Features

• Excellent Lubrication: Layered structure allows easy sliding between sulfur planes, reducing wear and friction.

• Superior Adhesion: Sulfur atoms bond strongly to metal surfaces, forming durable lubricating films.

• Chemical Stability: Insoluble in water and dilute acids; only dissolves in aqua regia and concentrated sulfuric acid.

• Thermal Stability: Maintains lubrication properties even under high vacuum and extreme conditions.

• Enhanced Catalysis: Nano-MoS₂ shows increased surface activity, higher selectivity, and efficiency in hydrogenation and methanation reactions.

Applications

1. Lubricants

• Used as a dry lubricant in extreme conditions (spacecraft, satellites, defense applications).

• Improves wear resistance and reduces friction in machinery and aerospace equipment.

• Provides high vacuum lubrication where conventional greases fail.

2. Composites

• Incorporated into polymer nanocomposites (e.g., PS/MoS₂) as a conductive filler.

• Improves mechanical strength, electrical conductivity, and antistatic performance without reducing insulation.

3. Catalysis

• Highly efficient catalyst in hydrodesulfurization, methanation, coal liquefaction, and oil refining.

• Nano-MoS₂ generates more sulfur vacancies, enhancing catalytic activity and selectivity.

• Applied in heavy oil conversion and hydrogenation reactions.

4. Advanced Materials

• Base material for intercalated nanocomposites with tunable electrical, magnetic, optical, and catalytic properties.

• Used in gas storage, energy systems, and next-generation electronic materials.