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Fullerene-like Nanoparticles of Titanium Disulfide

Author(s): Alexander Margolin, Ronit Popovitz-Biro, Ana Albu-Yaron, Alexander Moshkovich, Lev Rapoport, Reshef Tenne.

Abstract:

TiS2 nanoparticles with nested fullerene-like structure (IF) 60-120 nm in size consisting of up to 100 concentric molecular layers and having quite a perfectly spherical shape were obtained by reacting TiCl4 and H2S using first a horizontal and subsequently a vertical reactor. The proposed growth mechanism of these nanoparticles, i.e. nucleation and growth, is radically different from the one proposed for the growth of the fullerene-like WS2 from the respective oxide nanoparticles. It was found that adding 1-2% IF-TiS2 improves the behavior of lubricating oil substantially. The improved performance of the additive was attributed to the nearly spherical shape of the nanoparticles which promotes rolling friction.

Keywords: coalescence, agglomeration, double-zone oven, titanium tetrachloride, electron microscopy, X-ray diffraction

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Article Details

VOLUME: 1
ISSUE: 3
Year: 2005
Page: [253 - 262]
Pages: 10
DOI: 10.2174/157341305774642902
Price: $58