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学科主题: 物理化学
题名: Rationally designed carbon-coated Fe3O4 coaxial nanotubes with hierarchical porosity as high-rate anodes for lithium ion batteries
作者: Han, Fei1;  Ma, Lingjuan2, 3;  Sun, Qiang1;  Lei, Cheng1;  Lu, Anhui1
通讯作者: AnhuiLu
关键词: nanotube ;  carbon ;  Fe3O4 ;  rate capability ;  cycle stability
刊名: NANO RESEARCH
发表日期: 2014-11-01
DOI: 10.1007/s12274-014-0531-y
卷: 7, 期:11, 页:1706-1717
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: Fe3O4 is a promising high-capacity anode material for lithium ion batteries, but challenges including short cycle life and low rate capability hinder its widespread implementation. In this work, a well-defined tubular structure constructed by carbon-coated Fe3O4 has been successfully fabricated with hierarchically porous structure, high surface area, and suitable thickness of carbon layer. Such purposely designed hybrid nanostructures have an enhanced electronic/ionic conductivity, stable electrode/electrolyte interface, and physical buffering effect arising from the nanoscale combination of carbon with Fe3O4, as well as the hollow, aligned and hierarchically porous architectures. When used as an anode material for a lithium-ion half cell, the carbon-coated hierarchical Fe3O4 nanotubes showed excellent cycling performance with a specific capacity of 1,020 mAh center dot g(-1) at 200 mA center dot g(-1) after 150 cycles, a capacity retention of ca. 103%. Even at a higher current density of 1,000 mA center dot g(-1), a capacity of 840 mAh center dot g(-1) is retained after 300 cycles with no capacity loss. In particular, a superior rate capability can be obtained with a stable capacity of 355 mAh center dot g(-1) at 8,000 mA center dot g(-1). The encouraging results indicate that hierarchically tubular hybrid nanostructures can have important implications for the development of high-rate electrodes for future rechargeable lithium ion batteries (LIBs).
关键词[WOS]: HIGH-PERFORMANCE ANODES ;  HIGH-RATE CAPABILITY ;  HIGH LI-STORAGE ;  ENERGY-STORAGE ;  ALPHA-FE2O3 NANOTUBES ;  HOLLOW MICROSPHERES ;  MESOPOROUS CARBON ;  SUPERIOR ANODE ;  GRAPHENE ;  NANOPARTICLE
语种: 英语
WOS记录号: WOS:000345342800015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144280
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.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Peoples R China

Recommended Citation:
Han, Fei,Ma, Lingjuan,Sun, Qiang,et al. Rationally designed carbon-coated Fe3O4 coaxial nanotubes with hierarchical porosity as high-rate anodes for lithium ion batteries[J]. NANO RESEARCH,2014,7(11):1706-1717.
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