期刊
APPLIED SURFACE SCIENCE
卷 389, 期 -, 页码 240-246出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2016.07.105
关键词
Fe3O4; Anode; Microflowers; Nanoplates; Lithium-ion batteries
类别
资金
- Chinese National Natural Science Foundation [51401114]
- China Postdoctoral Science Foundation [2013M542528]
Uniform Fe3O4 microflowers assembled with porous nanoplates were successfully synthesized by a solvothermal method and subsequent annealing process. The structural and compositional analysis of the Fe3O4 microflowers were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The Bruauer-Emmett-Teller (BET) specific surface area was calculated by the nitrogen isotherm curve and pore size distribution of Fe3O4 microflowers was determined by the Barret-Joyner-Halenda (BJH) method. When evaluated as anode material for lithium-ion batteries, the as-prepared Fe3O4 microflowers electrodes delivered superior capacity, better cycling stability and rate capability than that of Fe3O4 microspheres electrodes. The improved electrochemical performance was attributed to the microscale flowerlike architecture and the porous sheet structural nature. (C) 2016 Elsevier B.V. All rights reserved.
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