期刊
ELECTROCHIMICA ACTA
卷 56, 期 18, 页码 6420-6425出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.05.011
关键词
Li-ion batteries; Electrodeposition; CoSb nanowires; Electrode; Electrochemical performance
资金
- Anhui Provincial Natural Science Foundation [11040606M52, 090414194]
- Science and Technology Planning Project of Anhui Province [10020203070]
- Hefei University of Technology [XS09046]
Large aspect ratio single crystalline cobalt antimony (CoSb) nanowire arrays were synthesized by a pulsed electrodeposition technique. X-ray diffraction analysis showed that the as-synthesized nanowires have a highly preferential orientation. Scanning electron microscopy, transmission electron microscopy, and high-resolution transmission electron microscopy indicate that high-filling, ordered, and single-crystalline nanowires were obtained. Energy dispersive spectrometry analysis shows that the atomic ratio of Co to Sb is very close to 1:1, and the growth mechanism and the electrodeposition process are below discussed, together with a chemical composition analysis. The electrochemical performance shows that the discharge capacity is very high for the CoSb nanowire/AAM electrodes, and the electrodes exhibit better capacity retention than the pure metal Sb electrodes. (C) 2011 Elsevier Ltd. All rights reserved.
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