Cobalt Nanopowder ( Co, 99.9%, 800nm)

Technical Specifications

1. Material Name
   • Product: Cobalt Nanopowder
   • Chemical Formula: Co
   • CAS Number: 7440-48-4
2. Purity
   • Grade: 99.9% (metal basis)
   • Impurities: ≤0.1% (trace metal oxides, other metallic or non-metallic elements)
3. Particle Size
   • Average Size: ~800 nm (micron-submicron range)
   • Particle Size Distribution: Typically confirmed by techniques such as SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
4. Morphology
   • Shape: Often near-spherical or irregular, depending on synthesis method.
   • Surface Area: Dependent on exact particle morphology, but typically higher than bulk cobalt due to small particle size.
5. Crystal Structure
   • Phases: Generally hexagonal close-packed (hcp) or face-centered cubic (fcc), with possible variations or mixtures depending on synthesis and processing conditions.
6. Physical and Chemical Properties
   • Color: Lustrous silvery-gray metal powder
   • Bulk Density: Varies with agglomeration (nanopowder often has a much lower apparent density than bulk cobalt)
   • Melting Point: ~1,495 °C
   • Boiling Point: ~2,927 °C
   • Magnetic Properties: Cobalt is ferromagnetic; nanoscale particles can exhibit unique magnetic behavior (e.g., superparamagnetism for very small particle sizes).
7. Packaging and Storage
   • Standard Packaging: Typically sealed in airtight containers under inert gas (argon) or vacuum-sealed to prevent oxidation.
   • Storage Conditions: Store in a cool, dry place; protect from air, moisture, and potential ignition sources.
   • Shelf Life: Under proper storage conditions, can remain stable for extended periods, but surface oxidation might occur over time.
8. Safety and Handling
   • Hazards:
     • May be flammable or pyrophoric in contact with air, especially when finely divided.
     • Inhalation of cobalt dust can be harmful; may cause respiratory irritation or sensitization.
   • Recommended Protective Measures:
     • Use appropriate personal protective equipment (PPE): gloves, goggles, and suitable respirators.
     • Handle under inert atmosphere if possible to minimize oxidation or self-heating risks.

Applications

1. Magnetic Materials
   • Magnets and Magnetic Storage: Cobalt’s ferromagnetic properties make it useful in high-performance permanent magnets or magnetic recording media.
   • Magneto-Optical Applications: In some research areas, cobalt nanoparticles are being studied for advanced data storage and spintronic devices.
2. Catalysts and Chemical Reactions
   • Hydrodesulfurization and Hydrogenation: Cobalt nanoparticles can serve as effective catalysts in refining processes or in synthesis of specialty chemicals.
   • Fischer-Tropsch Process: Cobalt-based catalysts are widely used to convert syngas (CO/H₂) into liquid hydrocarbons.
3. Battery and Energy Storage
   • Battery Electrodes: Cobalt is a key component in many rechargeable battery chemistries (e.g., Li-ion). Nanopowders can enhance electrode performance due to high surface area and improved electron/ion transport.
   • Fuel Cells: Cobalt nanostructures can be explored as electrocatalysts or catalyst supports in certain fuel cell designs.
4. Sensors and Electronics
   • Gas Sensors: The reactivity and high surface area of cobalt nanoparticles can improve sensitivity and selectivity in gas sensing devices.
   • Magnetoresistive Devices: Nanoscale cobalt can be incorporated into sensor systems that exploit changes in electrical resistance under magnetic fields.
5. Alloying and Metallurgical Applications
   • Superalloys: Cobalt is an essential element in high-temperature superalloys for aerospace and industrial gas turbine components. Adding cobalt nanostructures can tailor microstructure and mechanical properties.
   • Coatings and Surface Treatments: Cobalt nanopowder can be used to create thin films or composite coatings with enhanced hardness, corrosion resistance, or magnetic properties.
6. Biomedical Research (Limited/Exploratory)
   • Hyperthermia Treatment: Magnetic nanoparticles, including cobalt-based, are investigated for targeted hyperthermia in cancer therapy.
   • Drug Delivery (Experimental): Though less common than iron oxide, cobalt nanoparticles are studied for potential drug delivery platforms, with caution regarding biocompatibility.

In Summary

Cobalt Nanopowder (Co, 99.9%, 800 nm) is a high-purity, submicron form of cobalt with potential use in advanced magnetic materials, catalysis, battery electrodes, sensors, and more. Proper handling and storage are crucial to maintain its properties and ensure safety.