What are (-COOH) Functionalized Industrial Multi-Walled Carbon Nanotubes?

(-COOH) Functionalized Multi-Walled Carbon Nanotubes (MWCNTs) are multi-layered cylindrical carbon nanostructures chemically modified with carboxyl (-COOH) groups to improve dispersion, chemical reactivity, and compatibility with polymers, metals, and biomaterials. These nanotubes exhibit high electrical conductivity, mechanical strength, and thermal stability, making them ideal for electronics, energy storage, nanocomposites, and biomedical applications.

Chemical Properties of (-COOH) Functionalized MWCNTs

• Chemical Formula: C
• Outer Diameter: 10 – 100 nm (varies by type)
• Inner Diameter: 2 – 50 nm
• Length: 1 – 50 μm
• Aspect Ratio: 100 – 10,000
• Density: ~1.3 – 1.8 g/cm³
• Surface Functionalization: Carboxyl (-COOH) groups (~2-10%)
• Electrical Conductivity: ~10⁴ S/m (highly conductive)
• Thermal Conductivity: ~3,000 W/m·K (comparable to diamond)
• CAS Number: 308068-56-6

Applications of (-COOH) Functionalized MWCNTs

1. Electronics & Conductive Materials

   • Used in conductive inks, coatings, and printed circuit boards (PCBs).
   • Enhances electrical conductivity in polymer composites and thin films.

2. Energy Storage & Batteries

   • Improves electrode performance in lithium-ion batteries (LIBs) and supercapacitors.
   • Increases ion transport efficiency in fuel cells and hybrid energy storage systems.

3. Advanced Composites & Structural Materials

   • Enhances mechanical properties and thermal stability in plastics, rubber, and aerospace composites.
   • Used in lightweight and high-strength automotive and aviation materials.

4. Biomedical & Drug Delivery Applications

   • Functionalized MWCNTs assist in targeted drug delivery, biosensors, and tissue engineering.
   • Used in antibacterial coatings and medical implants.

5. Catalysis & Chemical Processing

   • Acts as a high-performance catalyst support in fuel cells and hydrogen production.
   • Used in environmental remediation and pollutant adsorption.

6. Water Purification & Filtration

   • Used in adsorption of heavy metals, organic pollutants, and toxic chemicals.
   • Applied in membrane filtration systems for water purification.

7. Sensors & Nanotechnology Applications

   • Enhances sensitivity in gas sensors, biosensors, and optical sensors.
   • Used in nanotechnology research and high-precision engineering applications.

(-COOH) Functionalized MWCNTs Prices

Pricing depends on purity, functionalization level, dispersion properties, and application-specific modifications.

• Industrial Grade (95% Purity, Bulk Production): $100 – $500 per kg
• High Purity (99% – 99.9% for Electronics & Energy Storage): $1,000 – $5,000 per kg
• Ultra-High Purity (99.99% for Biomedical & Research Applications): $10,000 – $20,000 per kg

Prices fluctuate based on synthesis method (chemical vapor deposition – CVD, arc discharge, or laser ablation), degree of functionalization, and market demand.