Description
Nitrogen-Doped Multi-Walled Carbon Nanotubes (N-MWCNTs)
Purity: >98 wt% | Nitrogen Content: 3–5 wt% | Surface Area: 100 m²/g
Nitrogen-doped Multi-Walled Carbon Nanotubes (N-MWCNTs) are advanced nanomaterials that combine the high electrical conductivity and mechanical strength of conventional carbon nanotubes with the enhanced surface chemistry provided by nitrogen incorporation. Produced via CVD (Chemical Vapor Deposition), these nanotubes exhibit improved reactivity, wettability, catalytic activity, and electron-donor properties—making them ideal for energy, biomedical, catalytic, and sensing applications.
Nitrogen atoms integrated into the graphitic lattice introduce defect sites and functional groups that significantly enhance their performance in electrochemical and electronic environments. This makes N-MWCNTs particularly suitable for next-generation supercapacitors, batteries, fuel cells, and targeted drug delivery systems.
Technical Properties
| Property | Value |
|---|---|
| Purity | > 98 wt% |
| Nitrogen Content | 3–5 wt% |
| Outer Diameter | 25–550 nm |
| Inner Diameter | 5–15 nm |
| Length | ~40 µm |
| Tap Density | 0.25 g/cm³ |
| Specific Surface Area | 100 m²/g |
| Electrical Conductivity | > 100 S/cm |
| Manufacturing Method | CVD |
| Color | Black |
Key Applications
The nitrogen functionalization of MWCNTs opens new possibilities in both conventional and cutting-edge applications:
Drug Delivery – Nitrogen sites enhance drug binding and controlled release
Biosensors – Improved surface chemistry for biomolecule interaction
CNT Composites – Better dispersion in polymers and enhanced interfacial bonding
Catalysis – Active sites for redox reactions and support for metal catalysts
Nanoprobes – Higher sensitivity for molecular detection
Hydrogen Storage – Nitrogen defects promote adsorption performance
Lithium-Ion Batteries – Enhanced cycling stability and capacity
Gas-Discharge Tubes – Superior conductivity and arc resistance
Flat Panel Displays – Conductive layers with high aspect ratios
Supercapacitors – Increased capacitance and charge/discharge rates
Transistors – Suitable for nanoelectronics with defect-engineered behavior
Solar Cells – Efficient charge transfer and light harvesting
Photoluminescence – Tuned emission characteristics via nitrogen sites
Templates – Chemically active scaffolds for nanoscale fabrication
Additional Potential Applications:
Fuel Cells – N-doping boosts oxygen reduction reaction (ORR) activity, making N-MWCNTs a promising candidate for Pt-free catalysts.
Electrochemical Sensors – Enhanced electron transfer kinetics due to nitrogen-induced surface activity.
Environmental Remediation – Adsorption and degradation of heavy metals or organic pollutants.
Biomedical Imaging – Improved contrast and biocompatibility with functional groups.

