Research Article


2016, 9(8): 2445–2457


Interface-modulated approach toward multilevel metal oxide nanotubes for lithium-ion batteries and oxygen reduction reaction

Jiashen Meng1,§, Chaojiang Niu1,§, Xiong Liu1, Ziang Liu1, Hongliang Chen2, Xuanpeng Wang1, Jiantao Li1, Wei Chen1, Xuefeng Guo2 (*), and Liqiang Mai1 (*)

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1 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
2 Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
§ These authors contributed equally to this work.

Keywords: interface-modulatedapproach,multilevel nanotubes,metal oxide,lithium-ion battery (LIB),oxygen reduction reaction(ORR)
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  • Abstract
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Metal oxide hollow structures with multilevel interiors are of great interest forpotential applications such as catalysis, chemical sensing, drug delivery, andenergy storage. However, the controlled synthesis of multilevel nanotubes remainsa great challenge. Here we develop a facile interface-modulated approach towardthe synthesis of complex metal oxide multilevel nanotubes with tunable interiorstructures through electrospinning followed by controlled heat treatment. Thisversatile strategy can be effectively applied to fabricate wire-in-tube and tubein-tube nanotubes of various metal oxides. These multilevel nanotubes possessa large specific surface area, fast mass transport, good strain accommodation, andhigh packing density, which are advantageous for lithium-ion batteries (LIBs)and the oxygen reduction reaction (ORR). Specifically, shrinkable CoMn2O4tube-in-tube nanotubes as a lithium-ion battery anode deliver a high dischargecapacity of ~565 mAh·g−1 at a high rate of 2 A·g−1, maintaining 89% of the latterafter 500 cycles. Further, as an oxygen reduction reaction catalyst, these nanotubesalso exhibit excellent stability with about 92% current retention after 30,000 s,which is higher than that of commercial Pt/C (81%). Therefore, this feasiblemethod may push the rapid development of one-dimensional (1D) nanomaterials.These multifunctional nanotubes have great potential in many frontier fields.
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Interface-modulated approach toward multilevel metal oxide nanotubes for lithium-ion batteries and oxygen reduction reaction. Nano Res. 2016, 9(8): 2445–2457

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