Journal
CHINESE SCIENCE BULLETIN
Volume 59, Issue 32, Pages 4271-4273Publisher
SCIENCE PRESS
DOI: 10.1007/s11434-014-0556-3
Keywords
Graphene; Fe2O3; Nanocomposites; Lithium ion battery
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Funding
- National Natural Science Foundation of China [91022033, 21201158]
- National Basic Research Program of China [2011CB935901]
- Anhui Provincial Natural Science Foundation [1208085QE101]
- Fundamental Research Funds for the Central Universities [WK 2340000027]
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Graphene-wrapped Fe2O3 nanorings (RGO/Fe2O3) were synthesized by a facile approach, which assembled with graphene and the Fe2O3 nanorings precursor through the colloidal coagulation effect at room temperature. The uniform Fe2O3 nanorings prepared by hydrothermal routes were homogeneously distributed and well wrapped by graphene. When tested as anode for lithium ion batteries, RGO/Fe2O3 exhibits a high capacity and good cycling stability. This could be attributed to the interaction of ring-shaped structure and graphene sheets, which inherit the good kinetic property of Fe2O3 nanorings and enhance the structural integrity with graphene sheets' support.
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