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Hydrothermal synthesis of hexagonal WO3 nanowires with high aspect ratio and their electrochemical properties for lithium-ion batteries |
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| Authors: | Phuruangrat Anukorn Yayapao Oranuch Thongtem Titipun Thongtem Somchai |
| Affiliation: | 1.Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand ;2.Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand ;3.Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand ;4.Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand ; |
| Abstract: | One dimensional WO3 nanowires with high aspect ratio of >200 were synthesized by hydrothermal method. The effects of reaction temperature and time on phase and morphologies were studied and discussed. In this research, a suitable hydrothermal condition is at 200°C for 48 h. XRD, SEM, and TEM results show that the product is hexagonal WO3 phase with diameter of 25 nm and several ten micrometers long with growth in the c direction. The electrochemical properties were tested for rechargeable lithium batteries. The WO3 NWs electrode exhibits a stability trend over the 30 cycle testing. Some long-term activation process is attributed to the WO3 NWs electrode during charge/discharge reaction. |
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