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Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries
Zhou, Guangmin1; Wang, Da-Wei2; Li, Feng1; Zhang, Lili1; Li, Na1; Wu, Zhong-Shuai1; Wen, Lei1; Lu, Gao Qing (Max)2; Cheng, Hui-Ming1
Corresponding AuthorLi, Feng(fli@imr.ac.cn)
2010-09-28
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume22Issue:18Pages:5306-5313
AbstractA well-organized flexible interleaved composite of graphene nanosheets (GNSs) decorated with Fe3O4 particles was synthesized through in situ reduction of iron hydroxide between GNSs. The GNS/Fe3O4 composite shows a reversible specific capacity approaching 1026 mA h(-1) g(-1) after 30 cycles at 35 mA g(-1) 580 mAh g(-1) after 100 cycles at 700 mA g(-1) as well as improved cyclic stability and excellent rate capability. The multifunctional features of the GNS/Fe3O4 composite are considered as follows: (i) GNSs play a "flexible confinement" function to enwrap Fe3O4 particles, which can compensate for the volume change of Fe3O4 and prevent the detachment and agglomeration of pulverized Fe3O4, thus extending the cycling life of the electrode; (ii) GNSs provide a large contact surface for individual dispersion of well-adhered Fe3O4 particles and act as an excellent conductive agent to provide a highway for electron transport, improving the accessible capacity; (iii) Fe3O4 particles separate GNSs and prevent their restacking thus improving the adsorption and immersion of electrolyte on the surface of electroactive material; and (iv) the porosity formed by lateral GNSs and Fe3O4 particles facilitates ion transportation. As a result, this unique laterally confined GNS/Fe3O4 composite can dramatically improve the cycling stability and the rate capability of Fe3O4 as an anode material for lithium ion batteries.
Funding OrganizationNational Science Foundation of China ; K.C. Wong Education Foundation, Hong Kong ; Chinese Academy of Sciences
DOI10.1021/cm101532x
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[50921004] ; National Science Foundation of China[50632040] ; K.C. Wong Education Foundation, Hong Kong ; Chinese Academy of Sciences[KGCX2-YW-231]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000281891900022
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1528[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/102902
Collection中国科学院金属研究所
Corresponding AuthorLi, Feng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Queensland, AIBN, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia
Recommended Citation
GB/T 7714
Zhou, Guangmin,Wang, Da-Wei,Li, Feng,et al. Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries[J]. CHEMISTRY OF MATERIALS,2010,22(18):5306-5313.
APA Zhou, Guangmin.,Wang, Da-Wei.,Li, Feng.,Zhang, Lili.,Li, Na.,...&Cheng, Hui-Ming.(2010).Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries.CHEMISTRY OF MATERIALS,22(18),5306-5313.
MLA Zhou, Guangmin,et al."Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries".CHEMISTRY OF MATERIALS 22.18(2010):5306-5313.
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