Multi-Wall Carbon Nanotubes (MWCNTs, >99%) Powder as Conductive Electrode Additive, 50 g/bottle, CCEAMWCNTP

Multi-walled carbon nanotubes (MWCNTs) are a critical conductive additive in electrochemistry, used primarily as a lower-cost, high-performance alternative to single-walled nanotubes. They consist of multiple nested graphene cylinders, providing a robust one-dimensional (1D) conductive network that is particularly effective at reinforcing electrodes and facilitating electron transfer in thick or high-loading systems. The critical features of MWCNT are: (1) High Aspect Ratio: Their length-to-diameter ratio (>100) allows them to reach the percolation threshold at much lower concentrations than carbon black. (2) Thermal Stability: MWCNTs are stable up to >600°C, making them safe for use in high-temperature electrochemical cells or battery thermal runaway scenarios. (3) Chemical Versatility: The outer walls of MWCNTs can be easily functionalized (e.g., adding -COOH or -OH groups) to improve their dispersion in water-based binders or to attach specific proteins for biosensing. 

(1) In battery applications, especially for thick electrode, MWCNT penetrate these deep layers more effectively than spherical carbon black, reducing internal resistance and improving the rate capability (fast charging).

(2) In electrolyzer and fuel cell application, MWCNTs are widely used as a substrate for Platinum (Pt) nanoparticles. Their high surface area and chemical stability improve the durability of the catalyst layer, resisting the corrosive, high-voltage conditions of fuel cell operation.

(3) In supercapacitor system, MWCNTs films are highly conductive that functions as both the active material and the current collector, creating ultra-lightweight and flexible energy storage for wearable electronics.

Part Number	CCEAMWCNTP (C-CEA-MWCNTP)
Average Size of MWCNT	I.D. = 3-5 nm,   O.D. = 8-15 nm
MWCNT length	~10-50 um
SWCNT content in Carbon	>99%
Surface Area	>233 m2/g (BET)
TGA
Package Size	50 g/bottle

Notes: Please try to store the MWCNTs powder in a dry place (glovebox is the best option). 

References: 

1. Q. S. Song, et al. Performance improvement of pasted nickel electrodes with multi-wall carbon nanotubes for rechargeable nickel batteries, Electrochimica Acta, 2007, 53, 1890-1896.
2. M. S. Wang, et al. One dimensional and coaxial polyaniline@tin dioxide@multi-wall carbon nanotube as advanced conductive additive free anode for lithium ion battery, Chem. Engineering J., 2018, 334, 162-171.