Synthesis of Fe2O3-CNT-graphene hybrid materials with an open three-dimensional nanostructure for high capacity lithium storage
- Publisher:
- ELSEVIER
- Publication Type:
- Journal Article
- Citation:
- Bao, Peite, Wang, Guoxiu, and Chen, Shuangqiang 2013, 'Synthesis of Fe2O3-CNT-graphene hybrid materials with an open three-dimensional nanostructure for high capacity lithium storage', ELSEVIER, vol. 2, no. 3, pp. 425-434.
- Issue Date:
- 2013
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Fe2O3?CNT?graphene nanosheet (Fe2O3?CNT?GNS) hybrid materials were synthesized using a chemical vapor deposition method. The as-prepared materials consist of Fe2O3 nanorings, bamboo-like carbon nanotubes and graphene nanosheets, which form an open threedimensional architecture. For the first time, we observed the growth of bamboo-like carbon nanotubes with open tips, which were catalyzed by iron nanorings. When applied as anode materials in lithium ion batteries, the Fe2O3?CNT?GNS hybrid materials exhibited a high specific capacity of 984 mAh g!1 with a superior cycling stability and high rate capability. This could be ascribed to short Li+ diffusion path of bamboo-like CNTs, more active reaction sites provided by graphene layers inside CNTs, flexible and highly conductive graphene nanosheets, and an open three-dimensional structure.
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