698849

Carbon nanotube, multi-walled

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

• Synonym(s): MWCNT, MWNT, Multiwall carbon nanotube
• CAS Number: 308068-56-6
• NACRES: NA.23

Properties

• Quality Level: 100
• Assay: >98% carbon basis
• form: powder
• composition: carbon, >98% (total metals impurities)
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• O.D. × L: 6-13 nm × 2.5-20 μm
• size: 10 μm , average length, TEM; 12 nm , average diameter, HRTEM
• surface area: BET surf. area ~220 m²/g (SSA)
• mp: 3652-3697 °C (lit.)
• density: ~2.1 g/mL at 25 °C (lit.)
• greener alternative category: Enabling

Description

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. 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 3697^oC. CVD production method is followed by HCl demineralization.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

A hybrid nanostructure system of MWNTs/titania was fabricated to be used as photodiodes in dye sensitized solar cells. MWNTs were investigated as electrodes for electrochemical biosensors. Use of MWNTs increased the efficacy, sensitivity and mechanical strength of the sensors.

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.

Physical form

average wall thickness 7-13 graphene layers

Preparation Note

Chemical Vapor Deposition (CVD) Method

Safety Information

• 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