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Solvothermal Synthesis of Nanocrystalline MoS2from MoO3and Elemental Sulfur

✍ Scribed by J.H. Zhan; Z.D. Zhang; X.F. Qian; C. Wang; Y. Xie; Y.T. Qian


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
223 KB
Volume
141
Category
Article
ISSN
0022-4596

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✦ Synopsis


Molybdenum disulfide crystallites has been synthesized from MoO 3 , S, and N 2 H 4 H 2 O in pyridine at 300Β°C for 12 h with good yield ('90%). The product is characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). XRD and IR analysis show that pure MoS 2 has been prepared. TEM shows that these nanoparticles are in the form of platelets. Here, a bi-step transition process from MoO 3 to MoO 2 and from MoO 2 to MoS 2 is proposed.


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In the IR spectrum (solid, Nujol) the bands of greatest intensity (with exception of the HZO bands) lie at 2118 [vaS(CN -E)], ]; the bands in the v(CN) region indicate high symmetry of the anion (2)