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MnO/C cubo-polyhedrons derived from α-MnO2@ZIF-8 as anode materials for high-performance lithium-ion batteries

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Abstract

In this work, MnO/C cubo-polyhedrons were successfully constructed with carbonizing α-MnO2@ZIF-8 precursors synthesized using sea urchin shaped α-MnO2 microspheres as a template. The as-prepared samples possess an irregular polyhedral cubic structure matrix coated with a thin carbon layer, characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). When exploited as an anode material for LIBs, MnO/C cubo-polyhedrons exhibit a high initial specific capacity of 1217.5 mA h g−1 at a current density of 0.1 A g−1, outstanding long cycling performance with a reversible capacity of 1308 mA h g−1 at 0.2 A g−1 for the 500th cycle and superior rate performance. Thus, MnO/C cubo-polyhedrons provide a new insight into the development of anode materials for next-generation high performance lithium ion batteries.

Graphical abstract: MnO/C cubo-polyhedrons derived from α-MnO2@ZIF-8 as anode materials for high-performance lithium-ion batteries

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Publication details

The article was received on 12 Aug 2019, accepted on 06 Nov 2019 and first published on 06 Nov 2019


Article type: Paper
DOI: 10.1039/C9SE00637K
Sustainable Energy Fuels, 2020, Advance Article

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    MnO/C cubo-polyhedrons derived from α-MnO2@ZIF-8 as anode materials for high-performance lithium-ion batteries

    Y. Lin, L. Zhang, J. Xiao and H. Liu, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE00637K

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