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Carbon Nanotubes (CNTs)


Carbon nanotubes (CNTs) are a part of the unique class of materials known as nanomaterials. Typically, CNTs are only one atom thick in one or more spatial dimensions.

Since their discovery in 1991, carbon nanotubes have captivated the scientific community with their extraordinary properties. Today, you can transform your research with our range of single, double, and multi-walled nanotubes.

Features and Applications

  • With unique structures and dimensional constraints, CNTs exhibit exceptional mechanical, electrical, thermal, and optical properties.
  • From semiconductors and chemical sensors to field emission devices and environmental pollution remediation, the potential uses for our CNTs are vast and varied.
  • Carbon nanotubes demonstrate electrical carrying capacities up to 1000 times that of copper wires, making them ideal for electronic systems and supercapacitors.
  • With carboxylic acid (-COOH) and hydroxyl (-OH) functionalized CNTs, enhancing properties like dispersibility in solvents and biochemical functionality without altering the unique properties of the inner tubes is easy.

Browse Carbon Nanotubes


Related categories: low dimensional materials, nanodots and quantum dots, 2D materials

More on Carbon Nanotubes


Carbon nanotubes are created when single layer hexagonal carbon lattices, similar to graphene, are rolled up to form elongated hollow tubes. These tubes are either open-ended or capped at the end with half fullerene molecules. CNTs can be multi-walled by being nesting within one another.

They can act in either a metallic, semi-metallic or semiconductor regime depending on the symmetry of the nanotube (based on the orientation of the hexagonal lattice).

Functionalisation of the outer wall of double- or multi-walled carbon nanotubes does not alter the properties of the inner tubes, allowing them to retain their unique properties after being functionalised.

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Carbon Nanotubes: Uses, Properties and Limitations

Carbon nanotubes (CNTs) have been deemed a wonder material due to their remarkable and highly unique physical and chemical properties. They have received much attention over the past decade as a promising material, particularly in the trending field of nanotechnology.

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References and Reading


Iijima, S (1991). Helical microtubules of graphitic carbon. Nature 354, 56–58. https://doi.org/10.1038/354056a0

Paradise, M., & Goswami, T. (2007). Carbon nanotubes – Production and industrial applications. Materials & Design, 28(5), 1477–1489. https://doi.org/10.1016/J.MATDES.2006.03.008

Kong, J., Franklin, N. R., Zhou, C., Chapline, M. G., Peng, S., Cho, K., & Dai, H. (2000). Nanotube molecular wires as chemical sensors. Science, 287(5453), 622–625. https://doi.org/10.1126/SCIENCE.287.5453.622/ASSET/9184CD8F-DEA6-49E7-B27E925BFD69D5F4/ASSETS/GRAPHIC/SE0208199004.JPEG

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