کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5364541 | 1503702 | 2012 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fe3O4/reduced graphene oxide nanocomposite as high performance anode for lithium ion batteries Fe3O4/reduced graphene oxide nanocomposite as high performance anode for lithium ion batteries](/preview/png/5364541.png)
Fe3O4/reduced graphene oxide (Fe3O4/RGO) nanocomposite was prepared by a facile interface reaction and subsequent in situ reduction process. The electrochemical performances of the as-prepared Fe3O4/RGO nanocomposite were evaluated in coin-type cells. It delivers high reversible capacity of 1025 mAh gâ1 at 100 mA gâ1 after 50 cycles and outstanding cycle stability. Even after 800 cycles at various rates from 100 to 4000 mA gâ1, the capacity still retains 959.4 mAh gâ1 at 100 mA gâ1. A transmission electron microscopy image has shown the flexible interleaved structure of nanocomposite, and the interface reaction is also benefit to ensure strong interfacial interaction between Fe3O4 nanoparticles (50 nm) and RGO nanosheets. The designed structure plays key role in improving electrochemical performance. The Fe3O4/RGO nanocomposite with super long cycling life will be an ideal candidate of anode material for lithium ion batteries.
⺠Fe3O4/graphene composite is fabricated by interface reaction and in situ reduction. ⺠The method leads to well-organized flexible interleaved structure. ⺠The interface reaction is benefit to ensure strong interfacial interaction. ⺠The nanocomposite shows high reversible capacity and super long cycling stability
Journal: Applied Surface Science - Volume 261, 15 November 2012, Pages 298-305