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Issue 11, 2012
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α-Fe2O3 nanowall arrays: hydrothermal preparation, growth mechanism and excellent rate performances for lithium ion batteries

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Abstract

α-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 α-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).

Graphical abstract: α-Fe2O3 nanowall arrays: hydrothermal preparation, growth mechanism and excellent rate performances for lithium ion batteries

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Publication details

The article was received on 28 Feb 2012, accepted on 02 Apr 2012 and first published on 04 May 2012


Article type: Paper
DOI: 10.1039/C2NR30482A
Nanoscale, 2012,4, 3422-3426

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    α-Fe2O3 nanowall arrays: hydrothermal preparation, growth mechanism and excellent rate performances for lithium ion batteries

    D. Lei, M. Zhang, B. Qu, L. Chen, Y. Wang, E. Zhang, Z. Xu, Q. Li and T. Wang, Nanoscale, 2012, 4, 3422
    DOI: 10.1039/C2NR30482A

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