Hydroxylated single-walled carbon nanotubes (SWCNT-OH)

as functionalized SWCNTs applied in a wide range of applications including sensors, batteries, and polymer reinforcement

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OH functionalized single-walled carbon nanotubes (SWCNT-OH) are hydroxylated SWCNTs with hydroxy groups attached to the surface of the nanotubes. Compared to pristine SWCNTs, SWCNT-OH has a propensity to trap electrons, leading to its applications in dye-sensitized solar cells, hydrogen evolution, and CO₂ reduction. The standard rate constant of the heterogeneous electron transfer between Fe(CN)₆^3−/4− and SWCNT-OH is 25.9 × 10⁻⁴ cm/s, which is four times higher than that of pristine SWCNTs.

The OH groups in SWCNT-OH enhance the dispersibility of the CNTs. The improved homogeneity of the composites promotes better mechanical properties and higher thermal stability. The hydroxy groups on the surface of the CNTs can form hydrogen bonds with other materials such as PEDOT:PSS. The intermolecular interaction extends the polymeric conformation of PEDOT, facilitating the electron conduction. This results in a greater power factor (PF) in thermoelectric devices, exhibiting an increased PF from 0.7 μW/m·K² to 22 μW/m·K².

High Purity

>92% OH functionalized SWCNTs

Worldwide Shipping

Quick and reliable shipping

Low Cost

Reduced cost in synthesis

Versatile Applications

Improve mechanical or electrical properties

General Information

CAS Number	308068-56-6
Chemical Formula	C_xH_yO_z
Full Name	Hydroxylated single-walled carbon nanotubes
Recommended Dispersants	DI water, DMF, THF, ethanol, and acetone
Synonyms	OH single-walled carbon nanotubes, Hydroxylated single-walled carbon nanotubes, Hydroxy single-walled carbon nanotubes, OH SWCNTs, SWCNT-OH, OH single-walled CNTs
Classification or Family	1D materials, Carbon nanomaterials, Nanomaterials, Polycyclic aromatic hydrocarbons, thin-film electronics
Appearance	Black fibrous powder

Chemical Structure

OH functionalized single-walled carbon nanotubes, SWCNT-OH, CAS number 308068-56-6

Product Details

Product Code	M2015L2	M2015L3	M2395B1
Diameter (nm)	< 2	2	1 – 2
Length (μm)	5 – 35	5 – 20	1 – 3
OH Content (wt%)	4	4	4
Specific surface Area (m²/g)	370	450	370
Purity (%)	> 92%	95%	> 92%

MSDS Documentation

References

Enhanced thermoelectric properties of PEDOT:PSS composites by functionalized single wall carbon nanotubes, M. Tonga et al., Int. J. Energy Res., 44, 9149–9156 (2020); DOI: 10.1002/er.5535.
The hydroxylated carbon nanotubes as the hole oxidation system in electrocatalysis, P Szroeder et al., Materials, 17, 3532 (2024); DOI: 10.3390/ma17143532.
Sulfur dioxide detection using composite of nickel benzene carboxylic (Ni₃BTC₂) and OH-functionalized single walled carbon nanotubes (OH-SWCNTs), N. Ingle et al., Front. Mater., 7, 93 (2020); DOI: 10.3389/fmats.2020.00093.

Nanocarbon-based sheets: Advances in processing methods and applications, C. Kostaras et al., Carbon, 221, 118909 (2024); DOI: 10.1016/j.carbon.2024.118909.
Electrode treatments for redox flow batteries: translating our understanding from vanadium to aqueous-organic, H. Agarwal et al., Adv. Sci., 11, 2307209 (2024); DOI: 10.1002/advs.202307209.
3D printing of electron/ion-flux dual-gradient anodes for dendrite-free zinc batteries, H. He et al., Adv. Mater., 35, 2211498 (2023); DOI: 10.1002/adma.202211498.

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