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901056

Sigma-Aldrich

Carbon nanotube sheet

aligned, size × thickness 50 mm × 50 mm × 1-5 μm

Synonym(s):

MWCNT, MWNT, Multiwall carbon nanotube

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About This Item

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

Quality Level

100

assay

>95% (carbon)

resistivity

10-1000 Ω/sq

size × thickness

50 mm × 50 mm × 1-5 μm

diameter

10-40 nm (carbon nanotubes)

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General description

Multi-walled carbon nanotubes are aligned in a direction. The CNTs are just connected with van der Waals forces, and no binder material is used. The sheet shows high anisotropic transport properties, including electrical conductivity and thermal conductivity.
CNT has a multi-walled structure. Crystal quality of CNT is examined by Raman scattering measurement. Intensity ratio of G-peak (1580 cm-1) and D-peak (1350 cm-1) represents quality of graphitization of carbon materials. G/D of CNT is ~3, showing high crystal quality. The high crystallinity is supported by transmission electron microscopy.

Preparation Note

Chemical Vapor Deposition (CVD) method.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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Anisotropic carbon nanotube papers fabricated from multiwalled carbon nanotube webs.
Inoue Y, et al.
Carbon, 49(7), 2437-2443 (2011)

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