| Autor: |
Posudievsky OY; L.V. Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine, 31 Prospekt Nauki, Kyiv 03028, Ukraine., Khazieieva OA, Kondratyuk AS, Cherepanov VV, Dovbeshko GI, Koshechko VG, Pokhodenko VD |
| Jazyk: |
angličtina |
| Zdroj: |
Nanotechnology [Nanotechnology] 2018 Feb 23; Vol. 29 (8), pp. 085704. |
| DOI: |
10.1088/1361-6528/aaa381 |
| Abstrakt: |
The possibility of the efficient preparation of graphene-like 1H-WS 2 by the primary solventless nanostructuration of bulk 2H-WS 2 by means of its mechanochemical treatment in the presence of a chemically inert agent (NaCl) and the subsequent liquid exfoliation of the nanostructured 2H-WS 2 in an organic solvent is shown for the first time. The shear stresses generated during the grinding of the WS 2 /NaCl mixture caused the formation of WS 2 particles with a reduced number of layers, while the stresses normal to their surface led to their cracking and a significant reduction in lateral size. The graphene-like morphology of the 1H-WS 2 nanoparticles in the prepared dispersions is confirmed by atomic force microscopy and Raman spectroscopy. The semiconducting character of 1Н-WS 2 is supported by electron absorption and x-ray photoelectron spectroscopy data. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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