期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 16, 期 4, 页码 4131-4135出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2016.11786
关键词
Energy Storage and Conversion; Nanoparticles; Carbon Materials; Nanocomposites; Tungsten Trioxide; Sodium-Ion Battery
类别
资金
- University Grants Commission, New Delhi [F.20-14/2013(BSR)]
- DST Nano Mission, India
- India-Taiwan
- STC-ISRO-IISc
- India Taiwan Science and Technology Cooperation Program [GITA/DST/TWN/P-46/2013]
Tungsten trioxide (WO3) is investigated for the first time as an anode material for sodium-ion batteries. Pristine WO3 displays a discharge potential plateau at 1 V and exhibits a 1st discharge cycle sodium storage capacity of 640 mAh g(-1). Electronic wiring of WO3 with graphene oxide (GO, 1% by weight) led to a significant increase in the storage capacity and cyclability of WO3. As a result, the discharge capacity of 1% GO-WO3 is enhanced to 927 mAh g(-1) in the 1st discharge cycle. The electrochemical intercalation of Na in to WO3 and (1%) GO-WO3 as obtained from galvanostatic charge/discharge cycling is also supported by cyclic voltammetry.
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