Multi Wall CNTs (Purity:95%, OD: 20-30nm, Length: 15-30µm )

High Purity Multi Wall CNTs

Product: Multi Wall CNTs (Purity:95%, OD: 20-30nm, Length: 15-30µm )

Quality Control: Each lot of NANOSHEL Multi Wall CNTs was tested successfully.

Description: Sample purity of NANOSHEL Multi Wall CNTs is 80-98 Vol%, as determined by Raman Spectrophotometer and SEM Analysis. Nanoshel Nano material contains no residual catalyst impurities. Tubes occur in bundles of length ~1 – 20μm (±1.5μm). Individual tube length has not been determined.

Multi Wall CNTs

FTIR Spectra of Multi Wall CNTs

Multi Wall CNTs

XPS Multi Wall CNTs

Materials Multi Wall CNTs
Stock No NS6130-06-648
CAS 308068-56-6 Confirm
Category M-LL-3 Confirm
Diameter 20-30nm Confirm
Length 15-30μm Confirm
Purity 90% (MWNT) Confirm
Amorphous carbon <<5% Confirm
Residue ( calcination in air) <<5% 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 Ω.cm ( measured at pressure in powder) Confirm
Available Quantities 10Gms, 25Gms, 50Gms, 100Gms and larger quantites
Main Inspect Verifier Manager QC

Experts Review:

5454Dr. Ms. Kelley Johnson, Ph.D (Adam Mickiewicz University in Poznań, Poland)
Multi walled carbon nanotubes consists of multiple rolled layers (concentric tubes) of graphite.  Their diameter is 3-30 nm and they can grow various cm long, thus their aspect ratio can vary between 10 and ten million. MWCNT  have Russian –doll Structure, rigidity, smaller outer diameter, different wall structure, and hollow interior.

imagesDr. Richard Harper, Ph.D (National Polytechnic Institute (IPN), Mexico)
MWNTs are highly conductive when properly integrated into a composite structure. The outer wall alone is conducting, the inner walls are not significant to conductivity. MWNTs have a high aspect ratio with lengths typically more than 100 times the diameter, and much higher. Their performance and application is based not just on aspect ratio, but also on the degree of entanglement and the straightness of the tubes, which in turn is a function of the both the degree and dimension of defects in the tubes.

WQDr. Juan Yang (Seoul National University Seoul, South Korea)
MWNTs  with no defects have an excellent tensile strength and when integrated into a composite, such as a thermoplastic or thermoset compounds, can significantly increase its strength. MWNTs have a thermal stability more than 600 °C, based on the level of defects and to certain extent on the purity as residual catalyst in the product can also catalyze decomposition.

aaaaaDr. Steve Chesney, Ph.D (Ludwig Maximilian University of Munich,Germany)
MWNTs are an allotrope of sp2 hybridized carbon similar to graphite and fullerenes and as such have high chemical stability. To enhance the both Strength and dispersibility of composites one can functionalize the nanotubes.

DrLiDr. Ms. Mia Liao (National Taipei University of Technology, Taiwan)
MWNTs are suitable for various applications  due to its high conductivity and high aspect ratio. The needed conductivity level can be achieved with much lesser loadings than for conventional solutions such as metal particulates or carbon black. Applications are:  electrostatic discharge protection in wafer processing fabrication, antistatic elastomeric and plastic components for automobile fuel line components, plastics rendered conductive to enable electrostatic spray painting of automobile body parts, RFI shielding materials, etc.

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Multi Wall CNTs


Contact Us for Multi Wall CNTs
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From us, you can easily purchase Multi Wall CNTs at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at Contact: +1 302 268 6163 (US and Europe), Contact: +91-9779550077 (India). We invite you to contact us for further information about our company and our capabilities. At Nanoshel, we could be glad to be of service to you. We look forward to your suggestions and feedback.

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