journal article·2017-05-23Open access

Structural Properties of Double-Walled Carbon Nanotubes Driven by Mechanical Interlayer Coupling

Ahmed Ghedjatti, Yann Magnin, Frédéric Fossard, Guillaume Wang, Hakim Amara, Emmanuel Flahaut, Jean-Sébastien Lauret, Annick Loiseau

ACS Nano· Volume 11· Issue 5

Abstract

Structural identification of double-walled carbon nanotubes (DWNTs) is presented through a robust procedure based on the latest generation of transmission electron microscope, making possible a statistical analysis based on numerous nano-objects. This approach reveals that inner and outer tubes of DWNTs are not randomly oriented, suggesting the existence of a mechanical coupling between the two concentric walls. With the support of atomic-scale modeling, we attribute it to the presence of incommensurate domains whose structures depend on the diameters and helicities of both tubes and where inner tubes try to achieve a local stacking orientation to reduce strain effects.
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Research context

OpenAlex topics: Carbon Nanotubes in Composites · Graphene research and applications · Boron and Carbon Nanomaterials Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratoire d’Etude des Microstructures, ONERA-CNRS, BP 72, 92322 Châtillon Cedex, France

Aix-Marseille University and CNRS, CINaM UMR 7325, 13288 Marseille, France

Laboratoire Matériaux et Phénomènes Quantiques, CNRS-Université Paris 7, 10 Rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France

Centre Inter-universitaire de Recherche et d’Ingénierie des Matériaux (CIRIMAT), CNRS UMR 5085, Université Paul-Sabatier, 31062 Toulouse, France

Laboratoire Aimé Cotton, CNRS, Univ. Paris-Sud, ENS Cachan, Université Paris-Saclay, 91405 Orsay Cedex, France

Funding

Agence Nationale de la Recherche · FP7 Nanosciences, Nanotechnologies, Materials and new Production Technologies · Institut Universitaire de France · Centre de Comp?tences Nanosciences Ile-de-France

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