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755168

Sigma-Aldrich

Carbon nanotube, double-walled

<10% Metal Oxide(TGA)

Synonym(s):

NC-2100, DWNT, Double wall carbon nanotubes

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About This Item

CAS Number:
308068-56-6
MDL number:
MFCD06411993
UNSPSC Code:
12352103

form

powder

avg. diam. × L

3.5 nm × 1-10 μm , TEM

surface area

>500 m2/g , BET

impurities

<10% Metal Oxide (TGA)

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General description

Structure of double walled carbon nanotubes (DWNTs) can be imagined as a two coaxial concentric single walled carbon nanotubes (SWNTs). It has been prepared by catalytic chemical vapor deposition. DWNTs exhibit excellent field emission properties and may be potentially useful as field emission displays (FEDs) and field emission transistors (FETs).

Application

Applications include:
  • Electronics
  • Sensors
  • Composites
  • Energy Storage
  • Study of Life Science systems

Preparation Note

Catalytic Carbon Vapor Deposition (CCVD) Method

Legal Information

Product of Nanocyl, Inc.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Size-selective growth of double-walled carbon nanotube forests from engineered iron catalysts.
Yamada T, et al.
Nature Nanotechnology, 1(2), 131-136 (2006)
Dominick J Bindl et al.
ACS nano, 4(10), 5657-5664 (2010-10-07)
Semiconducting single-walled carbon nanotubes (s-SWCNTs) have strong near-infrared and visible absorptivity and exceptional charge transport characteristics, rendering them highly attractive semiconductor absorbers for photovoltaic and photodetector technologies. However, these applications are limited by a poor understanding of how photogenerated charges
Gram-scale CCVD synthesis of double-walled carbon nanotubes.
Flahaut E, et al.
Chemical Communications (Cambridge, England), 12, 1442-1443 (2003)
Amin Salehi-Khojin et al.
ACS nano, 5(1), 153-158 (2010-12-29)
There has been recent controversy whether the response seen in carbon nanotube (CNT) chemiresistors is associated with a change in the resistance of the individual nanotubes or changes in the resistance of the junctions. In this study, we carry out
Wai Li Ling et al.
ACS nano, 5(2), 730-737 (2011-01-11)
The classical pathway of complement is an essential component of the human innate immune system involved in the defense against pathogens as well as in the clearance of altered self-components. Activation of this pathway is triggered by C1, a multimolecular

Articles

Single-Double Multi-Walled Carbon Nanotubes

Find unique properties & applications of single (SWNTs) , double (DWNTs) & multi walled carbon nanotubes (MWCNTs).

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