Ossila M2015L3 is a grade of hydroxylated single-walled carbon nanotubes (SWCNT-OH), in which hydroxy groups are bonded to the nanotube surface. The material is supplied as a black fibrous powder with a purity of > 95%, an OH content of 4 wt%, a diameter of 2 nm, lengths of 5 – 20 μm and a specific surface area of 450 m2/g.
The surface OH groups make the nanotubes easier to disperse, and a more uniform composite generally gives better mechanical strength and higher thermal stability. SWCNT-OH also tends to trap electrons more readily than unmodified SWCNTs, which makes it of interest for dye-sensitized solar cells, hydrogen evolution and CO2 reduction. Its standard heterogeneous electron transfer rate constant with Fe(CN)6 3−/4− is 25.9 × 10−4 cm/s, four times that of pristine SWCNTs.
Because the hydroxy groups can hydrogen-bond with polymers such as PEDOT:PSS, they help extend the PEDOT chain conformation and improve electron conduction; in thermoelectric devices the power factor rose from 0.7 μW/m·K2 to 22 μW/m·K2. Recommended dispersants are DI water, DMF, THF, ethanol and acetone.
- Electrode and catalyst material for hydrogen evolution and CO2 reduction studies.
- Component in dye-sensitized solar cell research.
- Additive in PEDOT:PSS composites to raise thermoelectric power factor.
- Filler for polymer reinforcement with improved mechanical and thermal properties.
- Active material in gas sensors and battery electrode research.
| Brand | Ossila |
|---|---|
| CAS number | 308068-56-6 |
| Molecular formula | CxHyOz |
| Purity | > 95% |
| Category | — |
| Pack sizes | 100 mg, 250 mg, 500 mg, 1 g |
| Physical form | Black fibrous powder |
| Storage | — |
- Product code: M2015L3
- Product code: M2015L3
- Full name: Hydroxylated single-walled carbon nanotubes
- Diameter: 2 nm
- Length: 5 – 20 μm
- OH content: 4 wt%
- Specific surface area: 450 m2/g
- Recommended dispersants: DI water, DMF, THF, ethanol, and acetone
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