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题名: High rate capability of TiO2/nitrogen-doped graphene nanocomposite as an anode material for lithium-ion batteries
作者: Cai, Dandan1;  Li, Dongdong1;  Wang, Suqing1;  Zhu, Xuefeng2;  Yang, Weishen2;  Zhang, Shanqing3, 4;  Wang, Haihui1
关键词: TiO2 ;  Nitrogen-doped graphene ;  Anode material ;  Lithium-ion batteries
刊名: JOURNAL OF ALLOYS AND COMPOUNDS
发表日期: 2013-06-05
DOI: 10.1016/j.jallcom.2013.01.068
卷: 561, 页:54-58
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary ;  Metallurgy & Metallurgical Engineering
研究领域[WOS]: Chemistry ;  Materials Science ;  Metallurgy & Metallurgical Engineering
英文摘要: TiO2/nitrogen-doped graphene nanocomposite was synthesized by a facile gas/liquid interface reaction. The structure and morphology of the sample were analyzed by X-ray diffraction analysis, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. The results indicate that nitrogen atoms were successfully doped into graphene sheets. The TiO2 nanoparticles (8-13 nm in size) were homogenously anchored on the nitrogen-doped graphene sheets through gas/liquid interface reaction. The as-prepared TiO2/nitrogen-doped graphene nanocomposite shows a better electrochemical performance than the TiO2/graphene nanocomposite and the bare TiO2 nanoparticles. TiO2/nitrogen-doped graphene nanocomposite exhibits excellent cycling stability and shows high capacity of 136 mAh g(-1) (at a current density of 1000 mA g(-1)) after 80 cycles. More importantly, a high reversible capacity of 109 mAh g(-1) can still be obtained even at a super high current density of 5000 mA g(-1). The superior electrochemical performance is attributed to the good electronic conductivity introduced by the nitrogen-doped graphene sheets and the positive synergistic effect between nitrogen-doped graphene sheets and TiO2 nanoparticles. (C) 2013 Elsevier B. V. All rights reserved.
关键词[WOS]: NITROGEN-DOPED GRAPHENE ;  ELECTROCHEMICAL PERFORMANCE ;  PHOTOCATALYTIC ACTIVITY ;  CYCLING PERFORMANCE ;  TIO2 ;  NANOSHEETS ;  CAPACITY ;  NANOSTRUCTURES ;  SHEETS ;  NANOCRYSTALS
语种: 英语
WOS记录号: WOS:000316683700010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137912
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, Guangdong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian, Peoples R China
3.Griffith Univ, Ctr Clean Environm & Energy, Environm Futures Ctr, Griffith, Qld 4222, Australia
4.Griffith Univ, Griffith Sch Environm, Griffith, Qld 4222, Australia

Recommended Citation:
Cai, Dandan,Li, Dongdong,Wang, Suqing,et al. High rate capability of TiO2/nitrogen-doped graphene nanocomposite as an anode material for lithium-ion batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2013,561:54-58.
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