Journal
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
Volume 19, Issue 1-2, Pages 18-26Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/1536383X.2010.488594
Keywords
Inorganic nanotubes; Nanoparticles; Scale-up; WS2
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Funding
- H. Perlman Foundation
- Israel Science Foundation
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The growth mechanism of WS2 nanotubes is briefly discussed. Two distinct growth mechanisms can be delineated, leading to somewhat different products: 1) thick (50-150 nm) and very long (20-50 microns and above) nanotubes consisting of many (> 20) layers, and 2) slender (20-25 nm) nanotubes with 5-10 layers. The synthesis of large amounts of pure WS2 nanotubes belonging to the first category in the large-scale fluidized-bed reactor is described. Characterization of the nanotubes, which grow catalyst-free by a number of analytical techniques, is reported. The nanotubes reveal highly crystalline order, suggesting very good mechanical behavior and numerous applications, especially in the field of nanocomposites.
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