FREE shipping on qualifying orders when you spend or more. All prices ex. VAT. Enjoy hassle-free delivery, fulfilled by our EU subsidiary. Backed by our 50 State Delivery Guarantee. Regional distributors also available. Sorry, we are unable to accept orders from or ship to .

It looks like you are using an unsupported browser. You can still place orders by emailing us on info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

Graphitized Multi-Walled Carbon Nanotubes (G-MWCNT)

CAS Number 308068-56-6

Anode Materials, Battery Materials, Carbon Nanotubes (CNTs), Low Dimensional Materials, Materials

Product Code M2374A1-5g
Price $364 ex. VAT

Graphitized Multi-walled Carbon Nanotubes (G-MWCNT) (-OH and -COOH functionalised)

High purity MWCNT annealed under inert gas at high temperature – used for applications in biosensors, drug delivery, catalytic reactions, supercapacitors, energy storage and batteries.


Specifications | Pricing and Options | MSDS | Literature and Reviews


Graphitized multi-walled carbon nanotubes (G-MWCNT), CAS number 308068-56-6, are multi-walled carbon nanotubes graphitized by annealing under inert gas at high temperatures. The graphitization procedure can remove residual metal catalyst in the nanotubes and reduce the wall defects. High purity over 99.9% can be achieved by the annealing process however the the graphitization process is also known to reduce the specific surface area by half.

Graphitized carbon nanotubes thus can be considered as a new hybrid of graphitic foliates grown along the sidewalls of multi-walled carbon nanotubes (CNTs). The high temperature thermal treatment produces multi-walled carbon nanotubes with the highest graphite crystallization, electrical conductivity, and the best oxidization resistance.

Aluminum-Graphitic MWCNT cell with graphitic MWCNT serves as an active cathode for rechargeable Al-ion battery exhibits good electrochemical performance with a specific capacity of 64 mAh·g-1 at a current density of 200 mA·g-1, and delivers 58 mAh·g-1 with ~100% retention over 1000 cycles. Graphitized carbon nanotubes also finds applications in the following areas:

  • Biosensors
  • Electrodes for batteries and supercapacitors
  • Hydrogen storage
  • Flat panel displays
  • Transistor
  • Catalysis
  • Drug delivery
Reduced wall defects

Reduced wall defects

Graphitization purifies the MWCNTs

Applications for 308068-56-6

Various Applications

Used in batteries, hydrogen storage, transistors, catalysis, biosensers and drug delivery

Worldwide shipping for 308068-56-6

Worldwide shipping

Quick and reliable shipping

High purity

High purity

>99.9% High purity

General Information


CAS Number 308068-56-6
Chemical Formula CxHyOz
Full Name Graphitized Multi-walled Carbon Nanotubes
Synonyms G-MWCNT, Graphitized MWCNT
Classification / Family Graphite, Carbon Nanotubes, 1D Materials, Carbon Nanomaterials
Appearance Black powder

Product Detail


Product Code M2374A1 M2374B1 M2374C1
Purity >99.9% >99.99% >99.99%
External Diameter (nm) 28 – 48 28 – 48 28 – 48
Size (μm) 5 – 10 10 – 30 10 – 30
Function Group N/A OH COOH
Function Group Content N/A 0.55 wt% 0.35 wt%
Electrical Conductivity (s/cm) 98 98 98
Surface Area (m2/g) 35 35 35
Synthetic Method CVD CVD (at 800 ℃) CVD (at 800 ℃)

Pricing


Batch Quantity Price
M2374A1 5 g £280
M2374A1 10 g £460
M2374B1 1 g £115
M2374B1 5 g £460
M2374C1 1 g £115
M2374C1 5 g £460

MSDS Documentation


Graphitized Multi-walled Carbon Nanotubes (G-MWCNT) MSDSGraphitized Multi-walled Carbon Nanotubes (G-MWCNT) MSDS Sheet

Graphitized Multi-Walled Carbon Nanotubes OH functionalizedGraphitized Multi-Walled Carbon Nanotubes OH functionalized MSDS Sheet

Graphitized Multi-Walled Carbon Nanotubes COOH functionalizedGraphitized Multi-Walled Carbon Nanotubes COOH functionalized MSDS Sheet

Literature and Reviews


  1. Purification and structural annealing of multiwalled carbon nanotubes at graphitization temperatures, R. Andrews et al., Carbon, 39 (11), 1681-1687 (2001); DOI: 10.1016/S0008-6223(00)00301-8.
  2. Graphitic multi-walled carbon nanotube cathodes for rechargeable Al-ion batteries with well-defined discharge plateaus, M. Han et al., J. Power Sources, 451, 227769 (2020); DOI: 10.1016/j.jpowsour.2020.227769.
  3. 99.9% purity multi-walled carbon nanotubes by vacuum high-temperature annealing, W. Huang et al., Carbon 41. 2585–2590 (2003); DOI: 10.1016 / S0008-6223(03)00330-0.

Return to the top