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637351

Carbon nanotube, double-walled

50-80% carbon basis, O.D. × I.D. × L 5 nm × 1.3-2.0 nm × 50 μm

Synonym(s):

DWNT, Double wall carbon nanotubes

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250 mg

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$316.00
$237.00
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About This Item

CAS Number:
308068-56-6
UNSPSC Code:
12352103
NACRES:
NA.23
MDL number:
MFCD06411993

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assay

50-80% carbon basis

form

powder

composition

carbon, >90% (trace metal basis)

O.D. × I.D. × L

5 nm × 1.3-2.0 nm × 50 μm

surface area

>600 m2/g

bulk density

0.12‑0.14 g/mL

SMILES string

[C]

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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

Carbon nanotube, double walled can be used for a variety of applications such as solar cells, nanomechanical resonators, film heaters, biosensors, and field emission displays.

Packaging

Packaged in glass bottles

Preparation Note

Chemical Vapor Deposition (CVD) Method

Analysis Note

50-80% DWNT content, 10-40% other CNTs, remainder being amorphous carbon and residual metal catalysts.

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Carbon nanotube, double-walled 50-80% carbon basis, O.D. × I.D. × L 5 nm × 1.3-2.0 nm × 50 μm

Sigma-Aldrich

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Carbon nanotube, double-walled

Carbon nanotube, single-walled 98% (Semiconducting), avg. no. of layers, 1

Sigma-Aldrich

750522

Carbon nanotube, single-walled

Carbon nanotube, single-walled >70% (TGA), avg. no. of layers, 1

Sigma-Aldrich

755710

Carbon nanotube, single-walled

Carbon nanotube, single-walled ≥98% carbon basis, avg. no. of layers, 1

Sigma-Aldrich

900711

Carbon nanotube, single-walled

description

50-80% carbon basis, O.D. × I.D. × L 5 nm × 1.3-2.0 nm × 50 μm

description

98% (Semiconducting), avg. no. of layers, 1

description

>70% (TGA), avg. no. of layers, 1

description

≥98% carbon basis, avg. no. of layers, 1

form

powder

form

solid

form

powder

form

powder or flakes

assay

50-80% carbon basis

assay

98% (Semiconducting), 2% (Metallic)

assay

>70% (TGA)

assay

≥98% carbon basis, <1% (ash, by [technique used as per QC plan])

bulk density

0.12‑0.14 g/mL

bulk density

-

bulk density

-

bulk density

-

O.D. × I.D. × L

5 nm × 1.3-2.0 nm × 50 μm

O.D. × I.D. × L

-

O.D. × I.D. × L

-

O.D. × I.D. × L

-

surface area

>600 m2/g

surface area

-

surface area

-

surface area

800-1000 m2/g , by BET

composition

carbon, >90% (trace metal basis)

composition

-

composition

-

composition

-

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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