Journal
CHEMICAL ENGINEERING JOURNAL
Volume 356, Issue -, Pages 746-755Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.09.015
Keywords
Li-ion battery; Fe3O4; Anode; Magnetic self-assembly
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Funding
- National Nature Science Foundation of China [51672086]
- Science and Technology Bureau of Guangdong Government [2017B030308005]
- Fundamental Research Funds for the Central Universities [2014ZB0014]
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Cornlike ordered N-doped carbon coated hollow Fe3O4 (OH-Fe3O4@NC) composites are prepared through a facile strategy. The unique structure is composed of hundreds of N-doped carbon coated hollow Fe3O4 nanospheres. Successive carbon shell and hollow structure address the irreversibility issue of Fe3O4-based electrodes. Owing to the unique cornlike ordered structure, the as-prepared OH-Fe3O4@NC composites exhibit appealing electrochemical performance as anode materials for lithium-ion batteries (LIBs). It delivers a high reversible capacity of 1316 mA h g(-1) at 0.1 A g(-1) after 50 cycles and a remarkable rate performance (725, 551 and 361 mA h g(-1) at 1, 4, and 10 A g(-1), respectively). Our results demonstrate that the OH-Fe3O4@NC composites are the promising anode materials with high capacity for next generation LIBs.
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