Structural Properties of Double-Walled Carbon Nanotubes Driven by Mechanical Interlayer Coupling
Year: 2017
Type: article
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.
Source: ACS Nano
Institutions: Centre National de la Recherche Scientifique, Office National d'Études et de Recherches Aérospatiales, Laboratoire d'Étude des Microstructures, Aix-Marseille Université, Centre Interdisciplinaire de Nanoscience de Marseille, Laboratoire Matériaux et Phénomènes Quantiques, Université Toulouse III - Paul Sabatier, Centre Interuniversitaire de Recherche et d’Ingénierie des Matériaux, Université Paris-Sud, École Normale Supérieure Paris-Saclay, Université Paris-Saclay, Laboratoire Aimé Cotton
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2581111441