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题名: Enhanced cycling performance of Fe3O4-graphene nanocomposite as an anode material for lithium-ion batteries
作者: Lian, Peichao1;  Zhu, Xuefeng2;  Xiang, Hongfa1;  Li, Zhong1;  Yang, Weishen2;  Wang, Haihui1
关键词: Graphene sheets ;  Fe3O4 nanoparticles ;  Nanocomposite ;  Anode material ;  Lithium-ion batteries
刊名: ELECTROCHIMICA ACTA
发表日期: 2010-12-30
DOI: 10.1016/j.electacta.2010.09.086
卷: 56, 期:2, 页:834-840
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: Fe3O4-graphene nanocomposite was prepared by a gas/liquid interface reaction. The structure and morphology of the Fe3O4-graphene nanocomposite were characterized by X-ray diffraction, scanning electron microscopy and high-resolution transmission electron microscopy. The electrochemical performances were evaluated in coin-type cells. Electrochemical tests show that the Fe3O4-22.7 wt.% graphene nanocomposite exhibits much higher capacity retention with a large reversible specific capacity of 1048 mAh g(-1) (99% of the initial reversible specific capacity) at the 90th cycle in comparison with that of the bare Fe3O4 nanoparticles (only 226 mAh g(-1) at the 34th cycle). The enhanced cycling performance can be attributed to the facts that the graphene sheets distributed between the Fe3O4 nanoparticles can prevent the aggregation of the Fe3O4 nanoparticles, and the Fe3O4-graphene nanocomposite can provide buffering spaces against the volume changes of Fe3O4 nanoparticles during electrochemical cycling. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: REVERSIBLE CAPACITY ;  GRAPHENE NANOSHEETS ;  AMORPHOUS OXIDE ;  LI STORAGE ;  COMPOSITE ;  FABRICATION ;  ELECTRODES ;  SHEETS
语种: 英语
WOS记录号: WOS:000285177900029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142260
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Lian, Peichao,Zhu, Xuefeng,Xiang, Hongfa,et al. Enhanced cycling performance of Fe3O4-graphene nanocomposite as an anode material for lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2010,56(2):834-840.
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