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Title: Coaxial Fe3O4/CuO hybrid nanowires as ultra fast charge/discharge lithium-ion battery anodes
Authors: Saadat, Somaye
Zhu, Jixin
Sim, Daohao
Hng, Huey Hoon
Yazami, Rachid
Yan, Qingyu
Keywords: DRNTU::Engineering::Materials
Issue Date: 2013
Source: Saadat, S., Zhu, J., Sim, D., Hng, H. H., Yazami, R., & Yan, Q. (2013). Coaxial Fe3O4/CuO hybrid nanowires as ultra fast charge/discharge lithium-ion battery anodes. Journal of materials chemistry A, 1(30), 8672-8678.
Series/Report no.: Journal of materials chemistry A
Abstract: We report the facile, template free electrochemical fabrication of hierarchical Fe3O4/CuO hybrid wires, grown directly on a copper substrate. The electrodes are produced by the electrochemical deposition of Fe3O4 on CuO nanoneedle arrays, fabricated by anodization. The Fe3O4/CuO hybrid anodes displayed ultrafast charging/discharging properties and high rate capabilities, superior to those of their individual building blocks Fe3O4 and CuO. For example, at a current density of 820 mA g−1, the Fe3O4/CuO hybrid wires delivered high reversible specific capacity, good cycling stability (delivering 953 mA h g−1 discharge capacity with 98.7% Coulombic efficiency after 100 cycles) and excellent rate capability (319 mA h g−1 at 8200 mA g−1). The excellent performance of the Fe3O4/CuO hybrids comes from the intelligent integration of the two compatible components into unique hierarchical architectures with a high specific capacity, with one-dimensional CuO nanoneedle arrays electrochemically coated with mesoporous Fe3O4 nanocubes.
DOI: 10.1039/c3ta10885f
Fulltext Permission: none
Fulltext Availability: No Fulltext
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