Sonochemical synthesis of tungsten sulfide nanorods

Sergei I. Nikitenko; Yuri Koltypin; Yitzhak Mastai; Maxim Koltypin; Aharon Gedanken

doi:10.1039/B110867K

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Sergei I. Nikitenko,^a Yuri Koltypin,^b Yitzhak Mastai,^c Maxim Koltypin^b and Aharon Gedanken*^b

Author affiliations

* Corresponding authors

^a Institute of Physical Chemistry, RAS, Leninskii Pr.31, Moscow Russia

^b Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
E-mail: gedanken@mail.biu.ac.il.
Fax: +972-3-535-1250
Tel: +972-3-531-8315

^c Max Planck Institute of Colloids and Interfaces, Golm, Germany

Abstract

Amorphous WS₂ has been prepared by ultrasound irradiation of W(CO)₆ solution in diphenylmethane (DPhM) in the presence of a slight excess of sulfur at 90 °C under argon. Heating the amorphous powder at 800 °C under argon yields WS₂ nanorods and their packings. The average size of WS₂ nanorods was found to be 3–10 nm and 1–5 µm in thickness and length, respectively. The prepared WS₂ has been characterized by elemental analysis, X-ray powder diffraction measurements, FTIR spectroscopy, differential scanning calorimetry, thermogravimetric analysis, transmission electron microscopy, scanning electron microscopy, atomic force microscopy and energy dispersive X-ray analysis.

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Article information

DOI: https://doi.org/10.1039/B110867K
Article type: Paper
Submitted: 27 Nov 2001
Accepted: 26 Feb 2002
First published: 02 Apr 2002

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J. Mater. Chem., 2002,12, 1450-1452

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