Solvent-thermal preparation of nanocrystalline tin chalcogenide

Nanocrystalline beta-SnS2 has been successfully prepared by the reaction be tween SnCl4 and anhydrous Na2S using a solvent-thermal method at 150 degree s C, which is similar to the well-known hydrothermal process except that to luene is substituted for water. X-ray diffraction analysis indicates that t he product is the beta-SnS2 phase, and no Sn-O vibrations are found in the IR spectra. Transmission electron microscopy shows that the average particl e size is about 12 nm. (C) 1999 Elsevier Science Ltd. All rights reserved.