Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 490, Issue 1-2, Pages L20-L23Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.10.027
Keywords
Semiconductor; Chemical synthesis; Scanning electron microscopy; Hydrothermal method
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Funding
- Science Foundation of Shaanxi Provincial Education Department [08JZ38]
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SnS2 microspheres composed of submicron-sized flakes were successfully prepared via a simple surfactant-free hydrothermal reaction route at 240 degrees C for 12 h, using SnCl4 and Na2S as reactants. The powders were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The X-ray diffraction pattern confirmed that the SnS2 microspheres had a single-phase hexagonal structure. The SEM micrographs indicated that these microspheres with the size of similar to 30 mu m in diameter were mainly constructed by self-assembly of submicron-sized SnS2 flakes. The effect of reaction temperature and the amount of mineralizer (urea) on the formation of SnS2 microspheres under hydrothermal conditions were investigated and a possible formation mechanism was preliminarily presented. (c) 2009 Elsevier B.V. All rights reserved.
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