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    Uniqueness of Co3O4/Nitrogen-Doped Carbon Nano-spheres Derived from Metal-Organic Framework: Insight of Superior Lithium Storage Capabilities Beyond Theoretical and Electrochemical Features in High Voltage Battery

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    Type
    Article
    Authors
    Ming, Jun cc
    Wang, Limin
    Xue, Hongjin
    Na, Zhaolin
    Wu, Yingqiang
    Wang, Xuxu
    Li, Qian
    Liang, Fei
    Yin, Dongming
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2018
    Permanent link to this record
    http://hdl.handle.net/10754/627986
    
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    Abstract
    Developing versatile strategy to create new structured materials with hetero-atomic doping has become one of the fascinating research topics owing to their fantastic properties, while the popular metal-organic-framework opens a promising avenue to design diverse architectures. Herein, an intriguing kind of spherical N-doped porous carbon (i.e., N-C) particles containing numerous Co3O4 nanocrystals (i.e., Co3O4/N-C) is introduced, in which the Zn-Co based Prussian blue analogue act as a sacrificial template and carbon source while the volatilization of zinc and oxidation of Co can produce rich pores and form highly active Co3O4 nanocrystals. The resultant Co3O4/N-C particles has an extremely high lithium storage capacity of 1255 mA h g-1 and excellent rate capability even to the current of 2000 mA g-1. The long cycle life over 500 cycles at 1000 mA g-1 with the high capacity of 798 mAh g-1 further demonstrates its prominent properties. Our kinetics analysis reveals that the high performances beyond theoretical mainly stem from the active Co3O4 nanocrystals, fast diffusion of lithium ions within the structure and pseudocapacitive behaviors; therefore it further demonstrates impressive stability and rate capabilities in lithium ion battery versus the cathode of lithium layered oxide even at high voltage conditions.
    Citation
    Ming J, Wang L, Xue H, Na Z, Wu Y, et al. (2018) Uniqueness of Co3O4/Nitrogen-Doped Carbon Nano-spheres Derived from Metal-Organic Framework: Insight of Superior Lithium Storage Capabilities Beyond Theoretical and Electrochemical Features in High Voltage Battery. Journal of Materials Chemistry A. Available: http://dx.doi.org/10.1039/c8ta03959c.
    Sponsors
    This work is financially supported by the National Natural Science Foundation of China (Grant 21521092).
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Journal of Materials Chemistry A
    DOI
    10.1039/c8ta03959c
    Additional Links
    http://pubs.rsc.org/en/Content/ArticleLanding/2018/TA/C8TA03959C#!divAbstract
    ae974a485f413a2113503eed53cd6c53
    10.1039/c8ta03959c
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

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