| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1605790 | Journal of Alloys and Compounds | 2016 | 8 Pages |
•Porous MnO/C with composite nanostructure was prepared by hydrothermal reaction.•The composite nanostructure is consisting of nanorods and nano-octahedra.•The nRO-MnO/C delivers a charge capacity of 628.9 mAh g−1 after 300 cycles at 1.32 C.•The superior electrochemical performance should be owed to composite structure.
Porous MnO/C materials of composite nanostructure consisting of nanorods and nano-octahedra (denoted as nRO-MnO/C) were synthesized for the first time through a one-pot hydrothermal procedure followed by thermal annealing using PEG6000 as a soft template. When served as anode of LIBs, the nRO-MnO/C materials could maintain a reversible capacity as high as 861.3 mAh g−1 after 120 cycles at a rate of 0.13 C (1 C = 755.6 mA g−1), and a stable capacity of 313.5 mAh g−1 at a much higher rate of 4.16 C. Moreover, excellent long cycleability at high rate has been also evidenced by a capacity of 628.9 mAh g−1 measured after 300 cycles at 1.32 C. In comparison with mono-form porous nanorods (nR-MnO/C) and mono-form porous nano-octahedra (nO-MnO/C), the enhanced electrochemical performances of the nRO-MnO/C materials are attributed to the composite nanostructure, in which the nano-octahedra contact effectively with nanorods by laying in the space between them yielding synergy effect that facilitates the electronic transportation on electrode.
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