Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 3, Issue 8-9, Pages 1568-1574Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.200800083
Keywords
density functional calculations; electron microscopy; fullerenes; nanotubes; rhenium
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Inorganic fullerene-like (IF) Mo1-xRexS2 and W1-xRexS2 nanoparticles have been synthesized by a gasphase reaction involving the respective metal halides with H2S. The IF-Mo(W)(1-x)RexS2 nanoparticles, containing up to 5 % Re, were characterized by a variety of experimental techniques. Analyses of the X-ray powder diffraction and different electron microscopy techniques show that the Re is doped in the MoS2 host lattice. Interestingly, Re-doped MoS2 nanotubes are present as well, although in small quantities (similar to 5%). XPS results confirm the nanoparticles to be more n-type arising from the effect of Re doping. Additionally, density-functional tight-binding (DFTB) calculations support the observed n-type behavior.
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