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Issue 25, 2009
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Synthesis of fullerene-like MoS2nanoparticles and their tribological behavior

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Abstract

Further understanding of the growth mechanism and the detailed structure of fullerene-like MoS2 (IF-MoS2) nanoparticles was achieved by using a new kind of reactor. The annealed nanoparticles consist of >30 closed layers and their average diameter is 50–80 nm although a small (<5%) fraction of larger IF nanoparticles was discernible. The majority of the nanoparticles are found to have an oval (pitta-bread or flying-saucer) shape rather than being quasi-spherical. The (002) peak of the powder diffraction pattern reveals only a small (0.3%) shift to lower angles as compared to the bulk (2H) phase. This observation suggests that the structure of the nanoparticles produced in the present reactor is more relaxed as compared to the previously synthesized IF-MoS2 powder, which exhibited up to 2% shift. The present reactor also permitted scaling up of the production of the IF-MoS2 to more than 0.6 g/batch. Impregnation of such nanoparticles in metallic coatings is shown to endow these surfaces with excellent tribological behavior, which suggests numerous applications.

Graphical abstract: Synthesis of fullerene-like MoS2nanoparticles and their tribological behavior

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Article information


Submitted
24 Nov 2008
Accepted
03 Feb 2009
First published
06 Mar 2009

J. Mater. Chem., 2009,19, 4368-4374
Article type
Paper

Synthesis of fullerene-like MoS2nanoparticles and their tribological behavior

R. Rosentsveig, A. Margolin, A. Gorodnev, R. Popovitz-Biro, Y. Feldman, L. Rapoport, Y. Novema, G. Naveh and R. Tenne, J. Mater. Chem., 2009, 19, 4368
DOI: 10.1039/B820927H

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