Journal
NANOSCALE
Volume 4, Issue 11, Pages 3422-3426Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr30482a
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Funding
- Hunan Provincial Natural Science Foundation of China [10JJ1011, 11FH003]
- National Natural Science Foundation of China [21003041, 21103046]
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alpha-Fe2O3 nanowall arrays (NWAs) were grown directly on Ni foam by a facile hydrothermal method. Based on time-dependent experiment results, a possible formation mechanism for this structure was proposed. The as-prepared alpha-Fe2O3 samples have an open network structure constituted of interconnected nanowalls and can be directly used as integrated electrodes for lithium-ion batteries (LIBs). The unique nanostructural feature is advantageous in electron transport and electrolyte diffusion efficiency, which can accelerate the electrochemical reaction. Thus, compared to a traditional electrode, the unique assembly reduces polarization of the electrode and results in excellent rate performances (440 mA h g(-1) at 5 C).
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