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Title: Doping of Fullerene-Like MoS 2 Nanoparticles with Minute Amounts of Niobium

Authors:
 [1];  [2];  [3];  [1];  [3];  [4];  [5];  [3];  [6];  [6];  [1]
  1. Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100 Israel
  2. Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100 Israel, Schools of Chemistry and Physics, Tel-Aviv University, Tel Aviv 69978 Israel
  3. Department of Chemical Research Support, Weizmann Institute, Rehovot 76100 Israel
  4. Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100 Israel, Condensed Matter Physics Department, Jozef Stefan Institute, Jamova 39 1000 Ljubljana Slovenia
  5. Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100 Israel, Nanoscience and Nanotechnology, Cinvestav, Mexico City, P.O. Box 14-740 07000 México D.F. Mexico
  6. Materials Science and Chemical Engineering Department, Stony Brook University, Stony Brook NY 11794 USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1412597
Grant/Contract Number:
FG02- 03ER15476; SC0012335
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Particle & Particle Systems Characterization
Additional Journal Information:
Related Information: CHORUS Timestamp: 2017-12-11 05:19:25; Journal ID: ISSN 0934-0866
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Rosentsveig, Rita, Yadgarov, Lena, Isai Feldman, Yishay, Shilstein, Sana, Popovitz-Biro, Ronit, Visic, Bojana, Sedova, Anastasiya, Cohen, Sidney R., Li, Yuanyuan, Frenkel, Anatoly I., and Tenne, Reshef. Doping of Fullerene-Like MoS 2 Nanoparticles with Minute Amounts of Niobium. Germany: N. p., 2017. Web. doi:10.1002/ppsc.201700165.
Rosentsveig, Rita, Yadgarov, Lena, Isai Feldman, Yishay, Shilstein, Sana, Popovitz-Biro, Ronit, Visic, Bojana, Sedova, Anastasiya, Cohen, Sidney R., Li, Yuanyuan, Frenkel, Anatoly I., & Tenne, Reshef. Doping of Fullerene-Like MoS 2 Nanoparticles with Minute Amounts of Niobium. Germany. doi:10.1002/ppsc.201700165.
Rosentsveig, Rita, Yadgarov, Lena, Isai Feldman, Yishay, Shilstein, Sana, Popovitz-Biro, Ronit, Visic, Bojana, Sedova, Anastasiya, Cohen, Sidney R., Li, Yuanyuan, Frenkel, Anatoly I., and Tenne, Reshef. 2017. "Doping of Fullerene-Like MoS 2 Nanoparticles with Minute Amounts of Niobium". Germany. doi:10.1002/ppsc.201700165.
@article{osti_1412597,
title = {Doping of Fullerene-Like MoS 2 Nanoparticles with Minute Amounts of Niobium},
author = {Rosentsveig, Rita and Yadgarov, Lena and Isai Feldman, Yishay and Shilstein, Sana and Popovitz-Biro, Ronit and Visic, Bojana and Sedova, Anastasiya and Cohen, Sidney R. and Li, Yuanyuan and Frenkel, Anatoly I. and Tenne, Reshef},
abstractNote = {},
doi = {10.1002/ppsc.201700165},
journal = {Particle & Particle Systems Characterization},
number = ,
volume = ,
place = {Germany},
year = 2017,
month =
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 11, 2018
Publisher's Accepted Manuscript

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  • The principles of the microluminescence method for titration of minute amounts of substances in solutions were worked out. Luminescence microtitrometer, a new apparatus for the microluminescence titrations, is described. The microluminescence titration of zirconium is not prevented by the presence of Sn, Sb, U, Be, Ge, Al, Ti, CO, Mn, Cu, Cr, Ni, Ca, and Zn. Ce, Fe, and Th should be avoided. (auth)
  • Using the paradigm of carbon fullerenes, it is shown that nanoparticles of inorganic compounds with a layered structure, like MoS{sub 2}, are unstable against bending and form hollow closed clusters, designated inorganic fullerene-like structures (IF). The analogy can be extended to similar nanostructures, like nanotubes (NT), nested fullerenes, fullerenes with negative curvature (Schwartzites), etc. Various synthetic routes are described to obtain isolated phases of IF. Pentagons and heptagons are expected to play a primodal role in the folding of these nanostructures but no direct evidence for their presence or their detailed structure exits so far. Depending on the structure ofmore » the unit cell of the layered compound, apexes of a different topology, like triangles or rectangles, are believed to be stable elements in IF. Applications of such nanoparticles as solid lubricants in mixtures with lubricating fluids are described.« less
  • The adsorption kinetics of thiophene on WS2 nanoparticles with fullerene-like (onion-like) structure has been studied at ultra-high vacuum conditions by sample temperature ramping techniques. At low temperatures, thiophene adsorbs molecularly. The formation of H2S and alkanes is evident at greater temperatures on fully sulfided as well as reduced and oxidized WS2 nanoparticles.
  • W/WS{sub 2} inorganic fullerene-like (IF) nanoparticles with core-shell structure are synthesized by the reaction of tungsten nanospheres and sulfur at relatively low temperatures (380-600 deg. C) under hydrogen atmosphere, in which tungsten nanospheres were prepared by wire electrical explosion method. Images of transmission electron microscopy and high-resolution transmission electron microscopy show that the composite particles are of core-shell structure with spherical shape and the shell thickness is about 10 nm. X-ray powder diffraction results indicate that the interlayer spacing of IF-WS{sub 2} shell decreases and approaches that of 2H-WS{sub 2} with increasing annealing temperatures, representing an expansion of 3.3-1.6%. Amore » mechanism of IF-WS{sub 2} formation via sulfur diffusion into fullerene nanoparticles is discussed. Thermal analysis shows that the nanoparticles obtained at different temperatures exhibit similar thermal stability and the onset temperature of oxidization is about 410 deg. C. Encapsulating hard tungsten core into IF-WS{sub 2} and the spherical shape of the core-shell structures may enhance their performance in tribological applications.« less