Stability criteria of fullerene-like nanoparticles: Comparing V2O5 to layered metal dichalcogenides and dihalides

Roi Levi, Maya Bar-Sadan, Ana Albu-Yaron, Ronit Popovitz-Biro, Lothar Houben, Yehiam Prior, Reshef Tenne

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Numerous examples of closed-cage nanostructures, such as nested fullerene-like nanoparticles and nanotubes, formed by the folding of materials with layered structure are known. These compounds include WS2, NiCl2, CdCl2, Cs2O, and recently V2O5. Layered materials, whose chemical bonds are highly ionic in character, possess relatively stiff layers, which cannot be evenly folded. Thus, stress-relief generally results in faceted nanostructures seamed by edge-defects. V2O5, is a metal oxide compound with a layered structure. The study of the seams in nearly perfect inorganic "fullerene-like" hollow V2O5 nanoparticles (NIFV2O5) synthesized by pulsed laser ablation (PLA), is discussed in the present work. The relation between the formation mechanism and the seams between facets is examined. The formation mechanism of the NIF-V2O5 is discussed in comparison to fullerene-like structures of other layered materials, like IF structures of MoS2, CdCl2, and Cs2O. The criteria for the perfect seaming of such hollow closed structures are highlighted.

Original languageEnglish
Pages (from-to)4428-4445
Number of pages18
JournalMaterials
Volume3
Issue number8
DOIs
StatePublished - 1 Dec 2010
Externally publishedYes

Keywords

  • Fullerenes
  • Inorganic
  • Laser ablation
  • Stability
  • Tem
  • Vanadium

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