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659258

Sigma-Aldrich

Carbon nanotube, multi-walled

>90% carbon basis, D × L 110-170 nm × 5-9 μm

Synonyme(s) :

MWCNT, MWNT, Multiwall carbon nanotube

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About This Item

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

Niveau de qualité

100

Pureté

>90% carbon basis

Forme

powder

Composition

carbon, >90%

P × L

110-170 nm × 5-9 μm

Pf

3652-3697 °C (lit.)

Densité

1.7 g/mL at 25 °C
~2.1 g/mL at 25 °C (lit.)

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Catégories apparentées

Description générale

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 110-170nm and the length is between 5-9μm. The multiwalled nanotubes are stable in inert atmosphere upto a temperature of 3697oC.

Application

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.
Toxic and immunological effects of carbon nanotubes on human colorectal cancer cell line (Caco-2), the human breast adenocarcinoma cell line(MCF-7), Calu-3 cells from human lung adenocarcinoma and serous cells of proximal bronchial airways was investigated. These multiwalled carbon nanotubes were used to design a 3D, free standing porous carbon structure. The self-supporting structures could find potential uses in energy storage, supercapacitors, photovoltaic cells, field emission devices, sensors and high performance catalysts.Polystyrene/MWNTs nanocomposites have been fabricated and studied for its electrical and optical properties. Preparation of platinum/MWNTs/cobaltite nanocomposites has also been reported.

Notes préparatoires

Chemical Vapor Deposition (CVD) Method

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

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Ternary platinum-multiwall carbon nanotube-cobaltite composites for methanol electrooxidation.
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International Journal of Electrochemical Science, 6, 4775-4775 (2011)
Fabrication and characterization of three-dimensional macroscopic all-carbon scaffolds.
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Airway barrier dysfunction induced by exposure to carbon nanotubes in vitro: which role for fiber length?.
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Human & Experimental Toxicology, 28(6-7), 361-368 (2009)
Electrical and optical percolations of polystyrene latex?multiwalled carbon nanotube composites.
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Journal of Colloid and Interface Science, 344(2), 395-401 (2010)
Non-functionalized multi-walled carbon nanotubes alter the paracellular permeability of human airway epithelial cells.
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Toxicology Letters, 178(2), 95-102 (2008)
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