Multi Walled Carbon Nanotubes, Purity: > 96%, Outside Diameter: < 8 nm

Technical Specification:

1. Material Composition:
   • Structure: Multi-Walled Carbon Nanotubes (MWCNTs).
     • Composed of multiple concentric graphene cylinders.
   • Purity: >96%.
     • Minimal impurities such as amorphous carbon or residual catalysts.
   • Outer Diameter: <8 nm.
     • Ensures nanoscale dimensions for advanced applications.
   • Inner Diameter: Typically ~2–5 nm.
   • Length: 5–20 µm, depending on synthesis method.
2. Physical Properties:
   • Form: Black powder.
   • Specific Surface Area: 200–400 m²/g, depending on morphology.
   • Density: ~ 1.8–2.1 g/cm³, depending on packing.
3. Electrical and Thermal Properties:
   • Electrical Conductivity:
     • High, suitable for applications requiring excellent conductivity.
   • Thermal Conductivity:
     • Excellent, up to 3000 W/m·K along the tube axis.
4. Mechanical Properties:
   • Tensile Strength: ~ 10–60 GPa, depending on structural integrity.
   • Elastic Modulus: ~1 TPa, providing stiffness and durability.
5. Chemical Properties:
   • Chemical Stability:
     • High resistance to oxidation and chemical degradation under standard conditions.
   • Functionalization:
     • Can be functionalized with hydroxyl (-OH), carboxyl (-COOH), or other groups for compatibility with various materials.
6. Packaging:
   • Typically supplied in sealed containers ranging from 10 g to 1 kg or larger quantities for industrial use.

Applications:

1. Primary Applications:
   • Energy Storage:
     • Enhances performance in lithium-ion batteries, supercapacitors, and fuel cells by improving conductivity and energy density.
   • Reinforced Composites:
     • Strengthens polymers, ceramics, and metals while adding electrical and thermal conductivity.
   • Electronics:
     • Used in conductive films, flexible circuits, and nanodevices.
2. Industries:
   • Electronics:
     • Applied in sensors, transparent conductive films, and interconnects.
   • Energy:
     • Improves efficiency in energy storage devices and renewable energy systems.
   • Automotive:
     • Used in lightweight conductive materials and battery systems.
   • Aerospace:
     • Reinforces lightweight structural materials for advanced applications.
   • Biomedical:
     • Serves in drug delivery, biosensors, and tissue engineering.
3. Advantages for Applications:
   • High Aspect Ratio:
     • Provides excellent interaction with surrounding materials in composites and coatings.
   • Electrical and Thermal Conductivity:
     • Supports advanced electronic and thermal management solutions.
   • Chemical Versatility:
     • Functionalizable for tailored applications.
   • Mechanical Strength:
     • Adds durability and flexibility to host materials.
4. Specialized Uses:
   • Electromagnetic Shielding:
     • Effective for EMI shielding in electronic devices.
   • Water Treatment:
     • Acts as an adsorbent for removing heavy metals and organic pollutants.
   • Sensors:
     • Enhances sensitivity in gas and chemical sensors.
   • Catalysis:
     • Serves as a support for metal nanoparticles in catalytic applications.
5. Challenges and Mitigation:
   • Dispersion Issues:
     • MWCNTs tend to agglomerate in solvents.
       • Solution: Use ultrasonication and surfactants for stable dispersions.
   • Cost:
     • High-purity MWCNTs may have higher costs.
       • Solution: Optimize usage in high-performance applications to justify costs.
   • Complex Functionalization:
     • Functionalizing MWCNTs requires precision.
       • Solution: Employ advanced chemical techniques for targeted modifications.

Storage Guidelines:

• Temperature: Store in a cool, dry place, away from moisture and sunlight.
• Container: Use airtight containers to prevent contamination and exposure to air.
• Handling: Wear appropriate safety equipment to avoid inhalation or skin contact.

Summary:

Multi-Walled Carbon Nanotubes (MWCNTs) with >96% purity and an outer diameter of <8 nm are advanced nanomaterials suitable for a wide range of applications. Their excellent electrical, thermal, and mechanical properties make them indispensable in energy storage, composites, electronics, and biomedical fields. Proper handling, dispersion techniques, and functionalization ensure optimal performance in industrial and research applications.