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
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Chemical Formula: MoS₂
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Purity: 99.9%
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Average Particle Size (APS): 100 nm (TEM tested)
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Color: Black / Dark gray
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Morphology: Spherical–flaky
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Density: 4.8 g/cm³
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Melting Point: 1185 °C (sublimation at 450 °C)
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CAS Number: 1317-33-5
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Mohs Hardness: 1–1.5
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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
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Excellent Lubrication: Layered structure allows easy sliding between sulfur planes, reducing wear and friction.
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Superior Adhesion: Sulfur atoms bond strongly to metal surfaces, forming durable lubricating films.
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Chemical Stability: Insoluble in water and dilute acids; only dissolves in aqua regia and concentrated sulfuric acid.
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Thermal Stability: Maintains lubrication properties even under high vacuum and extreme conditions.
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Enhanced Catalysis: Nano-MoS₂ shows increased surface activity, higher selectivity, and efficiency in hydrogenation and methanation reactions.
Applications
1. Lubricants
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Used as a dry lubricant in extreme conditions (spacecraft, satellites, defense applications).
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Improves wear resistance and reduces friction in machinery and aerospace equipment.
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Provides high vacuum lubrication where conventional greases fail.
2. Composites
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Incorporated into polymer nanocomposites (e.g., PS/MoS₂) as a conductive filler.
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Improves mechanical strength, electrical conductivity, and antistatic performance without reducing insulation.
3. Catalysis
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Highly efficient catalyst in hydrodesulfurization, methanation, coal liquefaction, and oil refining.
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Nano-MoS₂ generates more sulfur vacancies, enhancing catalytic activity and selectivity.
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Applied in heavy oil conversion and hydrogenation reactions.
4. Advanced Materials
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Base material for intercalated nanocomposites with tunable electrical, magnetic, optical, and catalytic properties.
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Used in gas storage, energy systems, and next-generation electronic materials.