The Drake Family Professor of Nanotechnology
Materials Scientist, Physical and Inorganic Chemist
Department of Materials and Interfaces
Weizmann Institute of Science, Rehovot 76100, Israel
Inorganic Fullerene-like Nanostructures and Inorganic NanotubesIn 1992 we showed that nanoparticles of the layered compound WS2 are unstable in the platelet form and they spontaneously form closed cage structures akin to carbon fullerenes and carbon nanotubes. This instability was attributed to the highly reactive dangling bonds of both sulfur and tungsten atoms, which appear at the periphery of the nanoparticles.
Numerous kinds of inorganic fullerene-like (IF) nanoparticles and nanotubes (INT) were synthesized by us and by others over the years. Detailed study of the growth mechanism of fullerene-like WS2 nanoparticles and nanotubes was undertaken. This development led to the scaling up of their production and their recent commercialization by ApNano Materials as superior solid lubricants with numerous potential applications. Much of our efforts today are focused on the synthesis of new nanotubes and fullerene-like nanoparticles and study of their unique physical and chemical behavior.
The microscope image in the header above was produced by Drs. Maya Bar-Sadan and Lothar Houben of the Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, in Juelich, Germany.