期刊
SUSTAINABLE ENERGY & FUELS
卷 4, 期 2, 页码 633-642出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9se00637k
关键词
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资金
- Technology and Basic and Frontier Research Program of Chongqing Municipality [cstc2018jcyjAX0701, cstc2017jcyjAX0326]
- Major Program of Chongqing University of Arts and Sciences [P2017XC06]
- Open Project Fund of Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University) [201818]
- Postgraduate Research Project Fund of Chongqing University of Arts and Sciences [M2017ME16]
In this work, MnO/C cubo-polyhedrons were successfully constructed with carbonizing alpha-MnO2@ZIF-8 precursors synthesized using sea urchin shaped alpha-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.
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