Journal
CHEMICAL ENGINEERING JOURNAL
Volume 330, Issue -, Pages 764-773Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.08.014
Keywords
Sodium-ion batteries; Anode materials; FeCo2O4; Electrochemical performance
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Funding
- National Natural Science Foundation of China [51432010]
- Science and Technology Commission of Shanghai Municipality [14JC1493000, 15DZ2281200]
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Nickel foam supported mesoporous FeCo2O4 nanosheets (FCO-NSs-Ni) are synthesized by a simple hydrothermal method, with a subsequent annealing process at a rather low temperature. The three dimensional microstructure, crystal phase and electrochemical performance of the as-prepared FeCo2O4 were investigated systematically. The results show that this material is composed of highly mesoporous nanosheet clusters with large specific surface area. The FCO-NSs-Ni as anode material for sodium ion battery maintains a discharge capacity of 422 mA h g(-1) with a coulombic efficiency of 95% after 100 cycles at a current density of 50 mA g(-1). Even at higher current densities of 100 mA g(-1), it still remains a reversible capacity of 338 mA h g(-1) after 300 cycles. This FCO-NSs-Ni could be considered as a promising candidate for anode material of sodium-ion batteries.
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