Stability of C60-peapods under hydrostatic pressure

Najafi Sohi, A ; Sharif University of Technology | 2007

271 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.actamat.2007.06.007
  3. Publisher: 2007
  4. Abstract:
  5. The stability of single-walled carbon nanopeapods under hydrostatic pressure is investigated using a continuum-based elastic shell model. The model incorporates nonbonded van der Waals interactions between the nested fullerenes and the host carbon nanotube. By deriving an explicit equation, it is shown that the critical hydrostatic pressure for the onset of structural instability of a completely packed C60@(10,10) nanopeapod is ∼1.11 GPa, while for the case of the pristine host (10,10) nanotube it is ∼1.84 GPa. Thus, it is concluded that the fullerene encapsulation weakens the host nanotube under hydrostatic pressure. In addition, it is quantitatively shown that any decrease in packing density of fullerenes lessens the weakening effect on the total stability of the nanopeapod. © 2007
  6. Keywords:
  7. Buckling ; Continuum mechanics ; Fullerenes ; Hydrostatic pressure ; Nanostructured materials ; Elastic shell model ; Packing density ; Structural instability ; Single-walled carbon nanotubes (SWCN)
  8. Source: Acta Materialia ; Volume 55, Issue 16 , 2007 , Pages 5483-5488 ; 13596454 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S1359645407004119