Abstract
Nanocrystalline antimony trisulfide (Sb 2S 3) was successfully synthesized via microwave irradiation by the reaction of antimony trichloride (SbCl 3) and thiourea (CS(NH 2) 2) with PVP as the surfactant. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and high resolution TEM (HRTEM). XRD results show that the as-prepared sample is orthorhombic-phase Sb 2S 3. TEM image of the as-prepared Sb 2S 3 shows the rod-like structure. HRTEM image indicates that rodbundles of Sb 2S 3 consists of a number nanorods with the diameter ranging from 30 nm to 50 nm. Detailed HRTEM image demonstrates the preferential direction growth of the Sb 2S 3 nanorods. The electrochemical properties of Sb 2S 3 were primarily investigated by constant current charge/discharge cycling tests in lithium hexafluorophosphate (LiPF 6) solution. The possible electrochemical reaction mechanism was explained. The results indicate that the nanocrystalline Sb 2S 3 shows potential application in the field of the electrode materials.
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