901019

Carbon nanotube, multi-walled

50-90 nm diameter, >95% carbon basis

• Synonym(s): MWCNT, MWNT, Multiwall carbon nanotube
• CAS Number: 308068-56-6
• UNSPSC Code: 12352103
• NACRES: NA.23

Properties

• description: D/G ratio: 0.1 (by Raman spectroscopy); Real density: 2.1 g/cm^{^3} (by Pycnometer)
• Quality Level: 100
• assay: >95% carbon basis
• aspect ratio: >100 , by FE-SEM
• surface area: 28 m²/g , by N<SUB>2</SUB> adsorption
• diameter: 50-90 nm; 65 nm (by FE-SEM)
• mp: 3652-3697 °C (lit.)
• density: ~2.1 g/mL at 25 °C (lit.)
• bulk density: 0.007 g/cm³ (by HCC method)

Description

General description

Carbon nanotubes are hollow cylinders of carbon atoms. They are rolled-upgraphene sheets with carbon atoms covalently bonded to each other through sp²hybridization. Owing to their excellent mechanical and electrical properties,they are widely used in the field of flexible and wearable electronicdevices.

Application

Multi-walled carbon nanotubes (MWCNTs) functionalized with a polymer blend can be used as a hybrid catalyst for the degradation of crystal violet under visible light.

Due to their high magnetic sensitivity, MWCNT/manganese–zinc ferrite nanocomposites can be used in integrated nanoscale electronic systems.

They can also be used tofabricate sensors for strain-sensing applications because of their highmechanical flexibility and stability.

Features and Benefits

• Excellent conductivity
• Light weight
• Chemical stability
• Large surface area
• High mechanical strength

Preparation Note

Chemical Vapor Deposition (CVD) Method

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable