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Home » Double Walled Carbon Nanotubes (Pure: 98%, Dia: 8-10nm, Avg Length: 20-30µm)


Stock No. CAS MSDS Specification COA
NS6130-06-699 308068-56-6 MSDS pdf Specification pdf COA pdf

High Purity Double Walled Carbon Nanotubes

(Pure: 98%, Dia: 8-10nm, Avg Length: 20-30um)

Available Pack Size: 10Gms, 25Gms, 50Gms, 100Gms, 250Gms, 500Gms, 1Kg & Bulk orders
Product Double Walled Carbon Nanotubes
Stock No NS6130-06-699
CAS 308068-56-6 Confirm
Diameter 8-10nm Confirm
Length 20-30μm Confirm
Purity 98% (DWCNT) Confirm
Amorphous carbon <1% Confirm
Residue ( calcination in air) <1% Confirm
Average interlayer distance 0.34nm Confirm
Special surface area 90-350* m2/g Confirm
Bulk density 0.05-0.17 g/cm3 Confirm
Real density 1-2 g/cm3 Confirm
Charging * 2180 (Capacity: mA h/g) Confirm
Discharging* 534 (Capacity: mA h/g) Confirm
Volume Resistivity 0.1-0.15 (measured at pressure in powder) Confirm
Quality Control Each lot of Double Walled Carbon Nanotubes was tested successfully.
Main Inspect Verifier Manager QC

Typical Chemical Analysis

MWCNT >99%
Amorphous Carbon <1%

Expert Reviews

Dr. Ms. Kelley Johnson, Ph.D, (Adam Mickiewicz University in Poznań, Poland)

Double-walled carbon nanotubes are coaxial nanostructures composed of exactly two single-walled carbon nanotubes, one nested in another. This double-wall structure makes DWNTs the simplest system for studying the effects of inter-wall coupling on the physical properties of carbon nanotubes (CNTs). Compared to single-walled carbon nanotubes (SWNTs), DWNTs have higher mechanical strength and thermal stability and they also possess interesting electronic and optical properties.

Dr. Richard Harper, Ph.D, (National Polytechnic Institute (IPN), Mexico)

DWNTS are used in applications such as: Field effect transistors, mass sensors, ultra-fast optical switches, nanomotor/nanobearing, capacitors, solar cells etc. DWNTS exhibit higher stability, which can be a substantial help in high-current and high-field experiments as, e.g., in field emission applications.

Dr. Juan Yang, (Seoul National University Seoul, South Korea)

DWCNTS possess enhanced properties compared to those of single-walled carbon nanotubes (SWCNTs). DWCNTs are more thermally stable than SWCNTs, as they can withstand temperatures as high as 2000 °C without experiencing considerable morphological changes.

Dr. Steve Chesney, Ph.D, (Ludwig Maximilian University of Munich,Germany)

Double wall carbon nanotubes have been considered as potential candidate for ultra-high frequency oscillator. The DWCNTs are separated into four categories wherein the inner–outer nanotubes are metal–metal, metal–semiconductor, semiconductor–metal and semiconductor– semiconductor single-wall nanotubes.

Dr. Ms. Mia Liao, (National Taipei University of Technology, Taiwan)

The band structure of a DWCNT depends on the combination of the configurations of the inner and outer tubes and their stability depends only on their inter layer spacing. The presence of a shielding outer wall is especially appealing for chemical and biological sensors, as it allows for chemical modification of the outer shell while maintaining the electrical properties of the inner pristine core.

Double Wall Carbon Nanotubes

Double Wall Carbon Nanotubes

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