期刊
RSC ADVANCES
卷 6, 期 43, 页码 36418-36424出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra02502a
关键词
-
资金
- National Natural Science Foundation of China [51362018, 21163010]
A new nanostructure of one-dimensional Co3O4/Co3V2O8 hybrid nanowires directly grown on Ti substrates with improved electrochemical Li-storage properties are successfully prepared by a simple hydrothermal strategy. The nanocomposites consist of the primary Co3O4 nanowires acting as the core and secondary Co3V2O8 nanocrystals as the shell layer, which form one-dimensional tentacle-like nanostructure. When used as potential anodes for lithium ion batteries, the Co3O4/Co3V2O8 hybrid nanowires exhibited an enhanced capacity with high initial discharge capacity of 1677 mA h g(-1) at 200 mA g(-1) and retained at 1251 mA h g(-1) after 200 cycles. Even when the current reached 5000 mA g(-1) the electrode can still maintain an average discharge capacity of 807 mA h g(-1). The enhanced electrochemical performances are attributed to unique hybrid nanowire architecture and an improved synergistic effect of two electrochemically component, ranking the hybrid nanostructure as a promising electrode material for high-performance energy storage systems.
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