Carbon nanotubes come in a variety of diameters and lengths. Depending on the growth process and treatment, nanotubes can be selectively produced with properties ranging from 1 to15 micrometers in length and diameters from 2 to 100 nanometers. These nanotube powder comes in agglomerate and aligned bundles and can be put into dispersion using ultrasound process (see link dispersing of nanotubes)

MULTI-WALL NANOTUBES

Our CVD Multi-wall nanotube properties range from 2 – 100 nm in diameter and lengths up to 100 nm. These nanotubes are offered in selective diameter ranges and are offered as Purified nanotubes.

Our CVD Single-wall nanotube properties range from 1.2-2 nm in diameter and 1 – 15µm in length. The purified single-wall nanotubes are treated much in the same way as the multi-wall nanotubes, resulting in a purity of greater than 90% nanotubes with the remaining material being amorphous carbon and less than 2.0% ash

(long) L-High-Purified SWNT:
Outer dia.: < 2nm
Length: 5-30 µm
Purity: > 95%CNT~ >90% SWNT
Ash: < 5 wt.

(long) L-Purified MWNT:
>95% nanotubes vs. amorphous carbon (<2%)
Ash content: < 0.2%
Lengths: 1-2µm, 5-15µm

(short) S-Purified MWNT:
>95% nanotubes vs. amorphous carbon (<2%)
Ash content: < 0.2%
Lengths: 1-2µm

(long) L-Purified Singlewall Nanotubes
Outer dia.: <2nm
Length: 5-15µm
Purity: > >90%CNT~ >50% SWNT*
Ash: < 2% wt.
Amorphous carbon: <5% wt.

(short) S-Purified Singlewall Nanotubes
Outer dia.: <2nm
Length: 1-5µm,
Purity: > >90%CNT~ >50% SWNT*
Ash: < 2% wt.
Amorphous carbon: <5% wt.

Double-wall Nanotubes
Outer diameter: <5nm
Length: 5-15µm
Purity 90%CNT~ DWNT>50% vol.
Ash: < 2% wt.
Amorphous Carbon < 6 Wt%