Flexible free-standing hollow Fe3O4/graphene hybrid films for lithium-ion batteries
文献类型：期刊论文
| 作者 | Wang, Ronghua; Xu, Chaohe; Sun, Jing; Gao, Lian; Lin, Chucheng |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:5页码:1794-1800 |
| ISSN号 | 0959-9428 |
| 其他题名 | Flexible free-standing hollow Fe3O4/graphene hybrid films for lithium-ion batteries |
| 通讯作者 | 孙静 |
| 中文摘要 | Flexible free-standing hollow Fe3O4/graphene (H-Fe3O4/GS) films were fabricated through vacuum filtration and thermal reduction processes, in which graphene formed a three-dimensional conductive network, with hollow and porous Fe3O4 spindles being captured and distributed homogeneously. Using the films as binder-free and free-standing electrodes for lithium-ion batteries, H-Fe3O4/GS with 39.6 wt% graphene exhibited a high specific capacity (1555 mA h g？1 at 100 mA g？1), enhanced rate capability and excellent cyclic stability (940 and 660 mA h g？1 at 200 and 500 mA g？1 after 50 cycles, respectively). The superior electrochemical performance of this novel material can be attributed to two factors. One is that the three dimensional (3D) graphene network formed is very helpful for keeping H-Fe3O4 in good electrical contact. Another is the short transport length for both lithium ions and electrons due to the porous nature which accommodates volume change and favors electrolyte penetration. It is believed that the strategy for preparing free-standing H-Fe3O4/GS films presented in this work will provide new insight into the design and synthesis of other metal oxide/GS electrodes for flexible energy storage devices. |
| 英文摘要 | Flexible free-standing hollow Fe3O4/graphene (H-Fe3O4/GS) films were fabricated through vacuum filtration and thermal reduction processes, in which graphene formed a three-dimensional conductive network, with hollow and porous Fe3O4 spindles being captured and distributed homogeneously. Using the films as binder-free and free-standing electrodes for lithium-ion batteries, H-Fe3O4/GS with 39.6 wt % graphene exhibited a high specific capacity (1555 mA h g(-1) at 100 mA g(-1)), enhanced rate capability and excellent cyclic stability (940 and 660 mA h g(-1) at 200 and 500 mA g(-1) after 50 cycles, respectively). The superior electrochemical performance of this novel material can be attributed to two factors. One is that the three dimensional (3D) graphene network formed is very helpful for keeping H-Fe3O4 in good electrical contact. Another is the short transport length for both lithium ions and electrons due to the porous nature which accommodates volume change and favors electrolyte penetration. It is believed that the strategy for preparing free-standing H-Fe3O4/GS films presented in this work will provide new insight into the design and synthesis of other metal oxide/GS electrodes for flexible energy storage devices. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 学科主题 | 材料科学 |
| 类目[WOS] | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | HIGH-PERFORMANCE ANODE ; REDUCED GRAPHENE ; RATE CAPABILITY ; STORAGE CAPACITY ; FE3O4 ; OXIDE ; NANOPARTICLES ; ELECTRODE ; COMPOSITE ; PAPER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000314640100037 |
| 公开日期 | 2014-12-18 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/5090]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ronghua,Xu, Chaohe,Sun, Jing,et al. Flexible free-standing hollow Fe3O4/graphene hybrid films for lithium-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(5):1794-1800. |
| APA | Wang, Ronghua,Xu, Chaohe,Sun, Jing,Gao, Lian,&Lin, Chucheng.(2013).Flexible free-standing hollow Fe3O4/graphene hybrid films for lithium-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,1(5),1794-1800. |
| MLA | Wang, Ronghua,et al."Flexible free-standing hollow Fe3O4/graphene hybrid films for lithium-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 1.5(2013):1794-1800. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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