Hierarchical self-entangled carbon nanotube tube networks

Fabian Schütt (), Stefano Signetti, Helge Krüger, Sarah Röder, Daria Smazna, Sören Kaps, Stanislav N. Gorb, Yogendra Kumar Mishra, Nicola M. Pugno () and Rainer Adelung ()
Additional contact information
Fabian Schütt: Kiel University
Stefano Signetti: University of Trento
Helge Krüger: Kiel University
Sarah Röder: Kiel University
Daria Smazna: Kiel University
Sören Kaps: Kiel University
Stanislav N. Gorb: Zoological Institute, Kiel University
Yogendra Kumar Mishra: Kiel University
Nicola M. Pugno: University of Trento
Rainer Adelung: Kiel University

Nature Communications, 2017, vol. 8, issue 1, 1-10

Abstract: Abstract Three-dimensional (3D) assemblies based on carbon nanomaterials still lag behind their individual one-dimensional building blocks in terms of mechanical and electrical properties. Here we demonstrate a simple strategy for the fabrication of an open porous 3D self-organized double-hierarchical carbon nanotube tube structure with properties advantageous to those existing so far. Even though no additional crosslinking exists between the individual nanotubes, a high reinforcement effect in compression and tensile characteristics is achieved by the formation of self-entangled carbon nanotube (CNT) networks in all three dimensions, employing the CNTs in their high tensile properties. Additionally, the tubular structure causes a self-enhancing effect in conductivity when employed in a 3D stretchable conductor, together with a high conductivity at low CNT concentrations. This strategy allows for an easy combination of different kinds of low-dimensional nanomaterials in a tube-shaped 3D structure, enabling the fabrication of multifunctional inorganic-carbon-polymer hybrid 3D materials.

Date: 2017
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DOI: 10.1038/s41467-017-01324-7

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