Three-Dimensional Fe2N@C Microspheres Grown on Reduced Graphite Oxide for Lithium-Ion Batteries and the Li Storage Mechanism

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	Three-Dimensional Fe2N@C Microspheres Grown on Reduced Graphite Oxide for Lithium-Ion Batteries and the Li Storage Mechanism
	Yu, P; Wang, L; Sun, FF; Zhao, DD; Tian, CG; Zhao, L; Liu, X; Wang, JQ; Fu, HG
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2015
卷号	21 期号:8 页码:3249—3256
关键词	OXYGEN REDUCTION REACTION ELECTRODE MATERIALS SULFUR BATTERIES MESOPOROUS CO3O4 ANODE MATERIAL HIGH-CAPACITY METAL ANODES GRAPHENE CARBON PERFORMANCE
英文摘要	Nanostructured iron compounds as lithium-ionbattery anode material have attracted considerable attention with respect to improved electrochemical energy storage and excellent specific capacity, so lots of iron-based composites have been developed. Herein, a novel composite composed of three-dimensional Fe2N@C microspheres grown on reduced graphite oxide (denoted as Fe2N@C-RGO) has been synthesized through a simple and effective technique assisted by a hydrothermal and subsequent heating treatment process. As the anode material for lithium-ion batteries, the synthetic Fe2N@C-RGO displayed excellent Li+-ion storage performance with a considerable initial capacity of 847 mAh g(-1), a superior cycle stability (a specific discharge capacity of 760 mAhg(-1) remained after the 100th cycle), and an improved rate-capability performance compared with those of the pure Fe2N and Fe2N-RGO nanostructures. The good performance should be attributed to the existence of RGO layers that can facilitate to enhance the conductivity and shorten the lithium-ion diffusion path; in addition, the carbon layer on the surface of Fe2N can avert the structure decay caused by the volume change during the lithiation/delithiation process. Moreover, in situ X-ray absorption fine-structure analysis demonstrated that the excellent performance can be attributed to the lack of any obvious change in the coordination geometry of Fe2N@C-RGO during the charge/discharge processes.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24608]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Yu, P,Wang, L,Sun, FF,et al. Three-Dimensional Fe2N@C Microspheres Grown on Reduced Graphite Oxide for Lithium-Ion Batteries and the Li Storage Mechanism[J]. CHEMISTRY-A EUROPEAN JOURNAL,2015,21(8):3249—3256.
APA	Yu, P.,Wang, L.,Sun, FF.,Zhao, DD.,Tian, CG.,...&Fu, HG.(2015).Three-Dimensional Fe2N@C Microspheres Grown on Reduced Graphite Oxide for Lithium-Ion Batteries and the Li Storage Mechanism.CHEMISTRY-A EUROPEAN JOURNAL,21(8),3249—3256.
MLA	Yu, P,et al."Three-Dimensional Fe2N@C Microspheres Grown on Reduced Graphite Oxide for Lithium-Ion Batteries and the Li Storage Mechanism".CHEMISTRY-A EUROPEAN JOURNAL 21.8(2015):3249—3256.