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Inorganic nanotubes and fullerene-like materials: new synthetic strategies lead to new materials (INTIF)
Start date: Dec 1, 2008, End date: Feb 28, 2014 PROJECT  FINISHED 

Inorganic nanotubes (INT) and particularly inorganic fullerene-like materials (IF) from 2-D layered compounds, which were discovered in the PI laboratory 16 years ago, are now in commercial use as solid lubricants ( with prospects for numerous applications, also as part of nanocomposites, optical coatings, etc. The present research proposal capitalizes on the leadership role of the PI and recent developments in his laboratory, much of them not yet published. New synthetic approaches will be developed, in particular using the WS2 nanotubes as a template for the growth of new nanotubes. This include, for example PbI2@WS2 or WS2@NbSe2 core-shell nanotubes, which could not be hitherto synthesized. Other physical synthetic approaches like ablation with solar-light, or pulsed laser ablation will be used as well. Nanooctahedra of MoS2 (NbS2), which are probably the smallest IF (hollow cage) structures, will be synthesized, isolated and studied. Extensive ab-initio calculations will be used to predict the structure and properties of the new INT and IF nanoparticles. Cs-corrected transmission electron microscopy will be used to characterize the nanoparticles. In particular, atomic resolution bright field electron tomography will be developed during this study and applied to the characterization of the INT and IF nanoparticles. The optical, electrical and mechanical properties of the newly sythesized INT and IF materials will be investigated in great detail. Devices based on individual nanotubes will be (nano)fabricated and studied for variety of applications, including mechanical and gas sensors, radiation detectors, etc. Low temperature measurements of the transport properties of individual INT and IF will be performed.
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