Research Article

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2013, 6(3): 167–173

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https://doi.org/10.1007/s12274-013-0292-z

Branched Co3O4/Fe2O3 nanowires as high capacity lithium-ion battery anodes

Hao Wu, Ming Xu, Yongcheng Wang, and Gengfeng Zheng (*)

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Laboratory of Advanced Materials, Department of Chemistry, Fudan University, Shanghai 200433, China

Keywords: Co3O4, α-Fe2O3, nanowire, branched, lithium-ion battery, Nyquist plot
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We report a facile, two-step hydrothermal synthesis of a novel Co3O4/α-Fe2O3 branched nanowire heterostructure, which can serve as a good candidate for lithium-ion battery anodes with high Li+ storage capacity and stability. The single-crystalline, primary Co3O4 nanowire trunk arrays directly grown on Ti substrates allow for efficient electrical and ionic transport. The secondary α-Fe2O3 branches provide enhanced surface area and high theoretical Li+ storage capacity, and can also serve as volume spacers between neighboring Co3O4 NW arrays to maintain electrolyte penetration as well as reduce the aggregation during Li+ intercalation, thus leading to improved electrochemical energy storage performance.
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Branched Co3O4/Fe2O3 nanowires as high capacity lithium-ion battery anodes. Nano Res. 2013, 6(3): 167–173 https://doi.org/10.1007/s12274-013-0292-z

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