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Keywords:

  • Carbon nanotubes;
  • Membranes;
  • Self-assembly;
  • Thin films
Thumbnail image of graphical abstract

Highly pure membranes of double–walled carbon nanotubes (DWCNTs; see figure) have been prepared by combining a purification process with the competition characteristics of water and ethanol interactions with the surface of CNTs. The resulting ultrathin films consist of a single layer of CNTs and they show an enhanced tensile strength. The method can also easily be expanded to other types of nanotubes.