期刊
ELECTROCHIMICA ACTA
卷 342, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2020.136107
关键词
SiO2 nanofibers; Fe-N doped C nanofibers; Lithium-ion batteries; Oxygen reduction reaction
资金
- National Natural Science Foundation of China [51673141]
- Project of Scientific and Technologic Infrastructure of Suzhou [SZS201905]
- Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province
Helical silica nanofibers have been prepared based on a sol-gel transcription approach. After covering a layer of m-phenylenediamine formaldehyde resin and consequent carbonization, SiO2@Fe-N doped C nanofibers with C content of 33.7 wt% and N content of 3.86 wt% were produced successfully. When applied as the electrode material for lithium-ion batteries (LIBs), they exhibit a high reversible capacity of 1274 mA h g(-1) the 1000th cycle and superior rating capability, implying the possibility as outstanding candidate anode materials for LIBs. Additionally, owing to the doping of Fe2O3 and N, the nanofibers also exhibit a well-performed oxygen reduction reaction activity, which is comparable to the commercial Pt/C catalyst. (C) 2020 Elsevier Ltd. All rights reserved.
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