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Carbon nanotube, multi-walled

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>98% carbon basis, O.D. × L 6-13 nm × 2.5-20 μm

MWCNT, MWNT, Multiwall carbon nanotube
CAS Number:

Quality Level


>98% carbon basis




carbon, >98% (total metals impurities)

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Design for Energy Efficiency
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O.D. × L

6-13 nm × 2.5-20 μm


10 μm , average length, TEM
12 nm , average diameter, HRTEM

surface area

BET surf. area ~220 m2/g (SSA)


3652-3697 °C (lit.)


~2.1 g/mL at 25 °C (lit.)

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General description

Multi walled carbon nanotubes (MWNTs, CNTs) were prepared by chemical vapor deposition (CVD). In chemical vapor deposition (CVD), a volatile precursor undergoes thermal decomposition at elevated temperatures to form a solid deposit on a substrate.[1] The diameter of the tube ranges between 6-13nm and the average length is 10μm. The multiwalled nanotubes are stable in inert atmosphere upto a temperature of 3697oC. CVD production method is followed by HCl demineralization.
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A hybrid nanostructure system of MWNTs/titania was fabricated to be used as photodiodes in dye sensitized solar cells.[2] MWNTs were investigated as electrodes for electrochemical biosensors. Use of MWNTs increased the efficacy, sensitivity and mechanical strength of the sensors.[3]
Carbon nanotube, multi-walled (MWNT) belongs to the class of carbonaceous materials with excellent physiochemical, 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.[4][5][6][7][8][9]


1 g in glass bottle

Physical form

average wall thickness 7-13 graphene layers

Preparation Note

Chemical Vapor Deposition (CVD) Method

Storage Class Code

11 - Combustible Solids



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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