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940313

Sigma-Aldrich

Vulcan® XC72

new

conductive carbon black

Synonym(s):

Black pearl, Vulcan XC-72

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About This Item

Empirical Formula (Hill Notation):
C
CAS Number:
Molecular Weight:
12.01
UNSPSC Code:
12171603
NACRES:
NA.21

grade

battery grade

Quality Level

form

powder

pH

~250(m2/g (BET))

bp

4200 °C

mp

3550 °C

bulk density

~0.265 g/cm3

application(s)

battery manufacturing
battery manufacturing

SMILES string

[C]

General description

Vulcan XC72 is a mesoporous carbon black characterized by its moderately high surface area, approximately 250 m²/g, coupled with superior electrical conductivity. The carbon particles exhibit an approximately spherical morphology and possess a primary size distribution ranging from 30 to 60 nanometers. This unique combination of features makes Vulcan XC72 an ideal candidate for various applications requiring antistatic and conductive properties.

Application

VULCAN XC72 is widely used in research and development for numerous antistatic and conductive purposes, particularly as a catalyst support. Its high specific surface area and excellent electrical conductivity contribute to enhanced performance in proton-exchange membrane fuel cells (PEMFC), outperforming materials such as acetylene black. Vulcan XC72′s adaptability facilitates the creation of catalyst composites, where catalyst nanoparticles may be either uniformly dispersed and deposited onto the carbon black substrate or synthesized in situ. The material′s extensive surface area is instrumental in regulating the size of catalyst nanoparticles, with evidence suggesting that carbon blacks with larger surface areas tend to produce smaller nanoparticles. Beyond fuel cell applications, Vulcan XC72 has also been employed as a catalyst support in various battery technologies, including redox flow batteries and metal-air batteries, such as zinc-air and sodium-air, where its properties enhance the overall electrochemical performance.

Legal Information

Vulcan is a registered trademark of Cabot Corporation

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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