Merck
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412988

Sigma-Aldrich

Carbon nanotube, multi-walled

greener alternative

as-produced cathode deposit, >7.5% MWCNT basis, O.D. × L 7-15 nm × 0.5-10 μm

Synonym(s):
MWCNT, MWNT, Multiwall carbon nanotube
CAS Number:
NACRES:
NA.23

Quality Level

Assay

>7.5% MWCNT basis

form

powder

composition

carbon content, >99% TGA

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

O.D. × L

7-15 nm × 0.5-10 μm

mp

3652-3697 °C (lit.)

density

~2.1 g/mL at 25 °C (lit.)

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This Item
901002901019659258
assay

>7.5% MWCNT basis

assay

>95% carbon basis

assay

>95% carbon basis

assay

>90% carbon basis

form

powder

form

-

form

-

form

powder

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

composition

carbon content, >99% TGA

composition

-

composition

-

composition

carbon, >90%

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

O.D. × L

7-15 nm × 0.5-10 μm

O.D. × L

10-40 nm × 0.5-1.5 mm

O.D. × L

-

O.D. × L

-

General description

These are catalyst free arc-discharge multiwall carbon nanotubes (MWNTs). Multi-walled carbon nanotube core surrounded by a fused carbon shell, the remainder being multi-layer polygonal carbon nanoparticles and amorphous and graphitic carbon nanoparticles. It contains approximately 5-20 graphitic layers.

Application

Carbon nanotube, multi-walled (MWNT) belongs to the class of carbonaceous materials with excellent thermo-mechanical and electrochemical properties. This material can be used in a variety of sustainable energy applications such as solar cells, photocatalysis, biosensor, gas sensor, supercapacitor and as a filler that acts as a reinforcement to improve the mechanical property of composites.
MWNTs were used in the comparative study of oxidative treatment to carbon nanomaterials. MWNTs were used as a reinforcement in CNT/SiC nano composites. 2

Physical form

Approximately 5-20 graphitic layers. Multi-walled carbon nanotube core surrounded by a fused carbon shell, the remainder being multi-layer polygonal carbon nanoparticles and amorphous and graphitic carbon nanoparticles.

Preparation Note

Electric Arc Discharge Method

Other Notes

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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