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Product & Production

SWCNH are produced by Carbonium Srl by a high-yield proprietary process based on rapid condensation of carbon atoms (C2 and C3) without any catalyst. Carbon dimers and trimers are obtained by direct vaporization of graphite. Massive productions of high purity grade SWCNH are now possible without any graphitic or metallic impurities.

Typical values 

Property

Value

Unit

Method

Metallic impurities*

0.0

wt%

 TGA-ICP/MS

Amorphous   carbon*

0.0

wt%

TGA

Horn   diameter

3-5

nm

TEM

Horn   length

30-50

nm

TEM

Cluster   diameter

60-120

nm

HRSEM/TEM

Density

1.1

g/cm3

__

Bulk   density

>15

g/dm3

__

Active   surface**

250-300

m2/g

BET

*as prepared, no graphitic impurities

**mild oxidising treatment in air increases the active surface up to 1400 - 1600 m2/g;

nh pluri reduced