What are (-COOH) Functionalized Short Single-Walled Carbon Nanotubes (SWCNTs)?

(-COOH) Functionalized Short Single-Walled Carbon Nanotubes (SWCNTs) are carbon nanotubes modified with carboxyl (-COOH) functional groups, enhancing their solubility, dispersibility, and reactivity in various solvents and composite materials. These functionalized SWCNTs are widely used in electronics, energy storage, biotechnology, and nanocomposites due to their superior electrical conductivity, mechanical strength, and chemical reactivity.

Chemical Properties and CAS Number

• Material: Single-Walled Carbon Nanotubes (SWCNTs)
• Functional Group: Carboxyl (-COOH)
• CAS Number: 308068-56-6
• Diameter: 0.8 – 2.0 nm
• Length: Shortened for enhanced dispersibility
• Purity: > 90% (Typical for functionalized SWCNTs)
• Surface Area: 200 – 1500 m²/g
• Electrical Conductivity: Highly conductive
• Thermal Stability: Stable up to 600°C in inert atmosphere
• Solubility: Enhanced in polar solvents (e.g., water, ethanol, DMF, NMP)

Applications of (-COOH) Functionalized Short SWCNTs

1. Electronics & Semiconductors

• Used in transparent conductive films, flexible displays, and sensors.
• Acts as an effective dopant for electronic components and transistors.
• Applied in printed and stretchable electronics.

2. Energy Storage & Batteries

• Enhances electrode conductivity in Li-ion batteries, supercapacitors, and fuel cells.
• Used as an additive in battery anodes and cathodes for higher energy density.
• Improves electrode durability and charge retention in supercapacitors.

3. Nanocomposites & Coatings

• Strengthens polymer, metal, and ceramic composites.
• Enhances mechanical properties (tensile strength, flexibility) and thermal stability.
• Applied in conductive coatings for EMI shielding and anti-static materials.

4. Biomedical & Drug Delivery

• Used in targeted drug delivery systems for cancer therapy and gene delivery.
• Applied in biosensors and diagnostic devices.
• Functionalized SWCNTs improve biocompatibility for medical applications.

5. Water Purification & Environmental Applications

• Acts as an adsorbent for heavy metals and organic pollutants.
• Used in filtration membranes for water purification.
• Applied in chemical sensing and gas detection.

6. Advanced Materials & Research

• Applied in nanolithography, catalysts, and advanced coatings.
• Enhances mechanical properties of aerospace and automotive components.
• Used in 3D printing materials for functionalized conductive structures.

Pricing of (-COOH) Functionalized Short SWCNTs

Pricing varies based on purity, functionalization degree, and order quantity:

• Lab-Scale Orders: $300 – $1,500 per gram
• Industrial Orders: $2,500 – $10,000 per kilogram
• Bulk Orders: Custom pricing for large-scale applications

Factors Influencing Pricing

• Purity Level (≥ 90%, ≥ 95%, or ≥ 99%)
• Degree of Functionalization (-COOH content, dispersion quality)
• Length and Diameter Specifications
• Production Method (CVD, arc discharge, laser ablation)
• Bulk Discounts & Custom Processing Costs

Conclusion

(-COOH) Functionalized Short Single-Walled Carbon Nanotubes (SWCNTs) are high-performance nanomaterials with applications in electronics, energy storage, nanocomposites, and biomedical research. Their carboxyl functionalization enhances solubility, reactivity, and compatibility with various materials, making them ideal for next-generation nanotechnology applications.