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Nanoseashells and Nanooctahedra of MoS2: Routes to Inorganic Fullerenes
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Enyashin, Andrey N., Bar-Sadan, Maya, Sloan, Jeremy, Houben, Lothar and Seifert, Gotthard (2009) Nanoseashells and Nanooctahedra of MoS2: Routes to Inorganic Fullerenes. Chemistry of Materials, Vol.21 (No.23). pp. 5627-5636. doi:10.1021/cm9021326
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Official URL: http://dx.doi.org/10.1021/cm9021326
Abstract
Nanooctahedra of MoS2 are considered to be the true inorganic fullerenes, exhibiting different properties from the bulk and also other closed-cage morphologies of the same material. These structures are produced in high energy systems where the synthesis is performed far from equilibrium conditions, and the reaction mechanism involved remains unknown. Here, the discovery of two imperfect structures of nanooctahedra-the distorted octahedra and seashell structures with meander-like cross sections-is reported and studied in detail using transmission electron microscopy and quantum-mechanical methods. These nanoparticles can serve to understand the synthesis route by establishing the basic principles of their morphology and stability. The fundamental properties of the inorganic lattice are the basis for matching the projections observed in microscopy images with a suggested atomistic model, Quantum-mechanical calculations are used to estimate their stability and electronic properties. It was concluded that the production of nanooctahedra involves a high temperature stage, where lattice defects enable the formation of a closed structure Without a templating particle. Thereafter at lower temperatures, the mixture of products is carried forward and the annealing contributes to the enrichment of the product with more symmetric structures.
| Item Type: | Journal Article | ||||
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| Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Chemistry of Materials | ||||
| Publisher: | American Chemical Society | ||||
| ISSN: | 0897-4756 | ||||
| Official Date: | 8 December 2009 | ||||
| Dates: |
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| Volume: | Vol.21 | ||||
| Number: | No.23 | ||||
| Number of Pages: | 10 | ||||
| Page Range: | pp. 5627-5636 | ||||
| DOI: | 10.1021/cm9021326 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Royal Society (Great Britain), European Research Council (ERC), Deutsche Forschungsgemeinschaft (DFG), German Federal Ministry for Education and Research, GMJ Schmidt Minerva Center for Supramolecular Chemistry, Harold Perlman Foundation | ||||
| Grant number: | 226639 |
Data sourced from Thomson Reuters' Web of Knowledge
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