Hydrothermal synthesis of hexagonal WO3 nanowires with high aspect ratio and their electrochemical properties for lithium-ion batteries

作者：Phuruangrat Anukorn; Yayapao Oranuch; Thongtem Titipun; Thongtem Somchai

来源：Russian Journal of Physical Chemistry, 2017, 91(12): 2441-2447.

DOI：10.1134/S0036024417120019

• WO3
• nanowires
• lithium-ion batteries

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 200A degrees 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.

• 出版日期2017-12