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901056

Sigma-Aldrich

Carbon nanotube sheet

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

Synonym(s):
Multiwall carbon nanotube, MWCNT, MWNT
CAS Number:

Quality Level

assay

>95% (carbon)

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Design for Energy Efficiency
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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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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