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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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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

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Certificats d'analyse (COA)

Lot/Batch Number
MKCP6012
MKCM7733
MKCL3918
MKCK2711
MKCK0722

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Consulter la Bibliothèque de documents

Ternary platinum-multiwall carbon nanotube-cobaltite composites for methanol electrooxidation.
Awasthi R and Singh RN
International Journal of Electrochemical Science, 6, 4775-4775 (2011)
Fabrication and characterization of three-dimensional macroscopic all-carbon scaffolds.
Carbon null
Airway barrier dysfunction induced by exposure to carbon nanotubes in vitro: which role for fiber length?.
Rotoli BM, et al.
Human & Experimental Toxicology, 28(6-7), 361-368 (2009)
Electrical and optical percolations of polystyrene latex?multiwalled carbon nanotube composites.
kara S, et al.
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.
Rotoli BM, et al.
Toxicology Letters, 178(2), 95-102 (2008)
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Articles

Manufacturing, Characterization and Use of Single Walled Carbon Nanotubes

Carbon nanotubes are materials that possess remarkable properties and offer extraordinary possibilities.

Sorting Carbon Nanotubes and Their Biological Applications

Carbon nanotubes (CNTs) have received much attention since their discovery in 1991 by Sumio lijima1 due to their excellent mechanical, electrical, and optical properties.

3D Printable Conductive Nanocomposites of PLA and Multi-walled Carbon Nanotubes

A nanocomposite is typically defined as a mixture between a host material (e.g., polymer matrix) and nanofillers with at least one dimension of less than 100 nm.

Building and Engineering Micro/Nano Architectures of Single-Walled Carbon Nanotubes for Electronic Applications

Building and Engineering Micro/Nano Architectures of Single-Walled Carbon Nanotubes for Electronic Applications

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