5 grams/85 €                          
25 grams/390 €  
100 grams/1180 €     
500 grams/4490 €   
1000 grams/8380 €   

Please contact us for quotes on larger quantities !!!  

(-COOH) Functionalized Short Length Double Walled Carbon Nanotubes

Purity: > 65%, OD: 2-4 nm 

(-COOH) Functionalized Short Length Double Walled Carbon Nanotubes (DWCNT‑COOH) are advanced nanomaterials synthesized via CVD, featuring concentric nanotube walls with controlled dimensions (OD 2–4 nm, length 0.5–2.5 µm). The carboxyl functional groups enhance dispersibility, chemical reactivity, and compatibility with polymers and biological systems. With high specific surface area (370 m²/g), excellent electrical conductivity (98 S/cm), and unique optical and mechanical properties, DWCNT‑COOH are ideal for integration into energy storage devices, electronic components, composites, catalysis, and biomedical research.

Technical Properties

Applications

• Medicine & Biotechnology: Carboxyl groups improve biocompatibility, enabling use in drug delivery systems, biosensors, and nanoprobes for diagnostics and targeted therapies.
• Composites & Mechanics: Short length and functionalization allow effective reinforcement in CNT‑polymer composites, enhancing mechanical strength, toughness, and electrical conductivity.
• Electronics: High conductivity supports applications in transistors, flat‑panel displays, and gas‑discharge tubes, contributing to miniaturized and high‑performance devices.
• Energy Storage: Applied as conductive additives in lithium batteries and supercapacitors, improving charge transport, cycle stability, and energy density.
• Catalysis & Chemicals: Large surface area and carboxyl groups provide active sites for heterogeneous catalysis and electrocatalysis, making them effective catalyst supports.
• Hydrogen Storage: Layered structure and functionalization enhance adsorption capacity, offering potential for clean energy storage solutions.
• Solar & Optoelectronics: Utilized in solar cells as conductive scaffolds and charge transport layers, and in photoluminescence studies, supporting advanced optoelectronic devices.
• Nanotechnology Tools: Their controlled short length and functional groups enable use as templates for nanostructure growth and advanced nanotechnology research.

Please click for the MSDS