Ossila M2395B2 is a grade of hydroxylated single-walled carbon nanotubes (SWCNT-OH), in which hydroxy groups are bonded to the nanotube surface. This short-length grade has a diameter of 2 nm, a length of 1 – 2 μm, an OH content of 4 wt% and a purity above 95%. It is supplied as a black fibrous powder.
Surface OH groups make the nanotubes easier to disperse, which gives more uniform composites with improved mechanical properties and thermal stability. The hydroxy groups can also hydrogen-bond with materials such as PEDOT:PSS, extending the PEDOT chain conformation and aiding electron conduction. In thermoelectric devices this has raised the power factor from 0.7 μW/m·K2 to 22 μW/m·K2.
SWCNT-OH tends to trap electrons more readily than pristine SWCNTs. Its standard heterogeneous electron transfer rate constant with Fe(CN)6 3−/4− is 25.9 × 10−4 cm/s, four times that of unfunctionalized nanotubes. Suitable dispersants include DI water, DMF, THF, ethanol and acetone.
- Gas sensors, including composites studied for sulfur dioxide detection.
- Battery electrodes, including redox flow and zinc battery research.
- Polymer reinforcement for composites with better mechanical and thermal performance.
- PEDOT:PSS thermoelectric composites with an enhanced power factor.
- Dye-sensitized solar cells, hydrogen evolution and CO2 reduction studies.
| Brand | Ossila |
|---|---|
| CAS number | 308068-56-6 |
| Molecular formula | CxHyOz |
| Purity | > 95% |
| Category | — |
| Pack sizes | 250 mg, 500 mg, 1 g |
| Physical form | Black fibrous powder |
| Storage | — |
- Product code: M2395B2
- Product code: M2395B2
- Dimensions: Diameter: 2 nm; Length: 1 – 2 μm
- OH content: 4 wt%
- Recommended dispersants: DI water, DMF, THF, ethanol, and acetone
—
—