Metal‐Organic‐Framework Derived Core‐Shell N‐Doped Carbon Nanocages Embedded with Cobalt Nanoparticles as High‐Performance Anode Materials for Lithium‐Ion Batteries

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  • Haoran Xu
    Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 China
  • Lanling Zhao
    School of Physics Shandong University Jinan 250100 P.R. China
  • Xiaomeng Liu
    Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 China
  • Qishun Huang
    Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 China
  • Yueqing Wang
    Key Laboratory for Colloid and Interface Chemistry (Ministry of Education) School of Chemistry and Chemical Engineering Shandong University Jinan 250061 China
  • Chuanxin Hou
    School of Environment and Material Engineering Yantai University Yantai 264005 China
  • Yuyang Hou
    CSIRO Mineral Resources Clayton Victoria 3168 Australia
  • Jun Wang
    Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 China
  • Feng Dang
    Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 China
  • Jintao Zhang
    Key Laboratory for Colloid and Interface Chemistry (Ministry of Education) School of Chemistry and Chemical Engineering Shandong University Jinan 250061 China

書誌事項

公開日
2020-09-13
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/adfm.202006188
公開者
Wiley

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説明

<jats:title>Abstract</jats:title><jats:p>To enhance the performance of Li‐ion batteries, hierarchical carbon‐based hollow frameworks embedded with cobalt nanoparticles are prepared by the pyrolysis of core‐shell ZIF‐8@ZIF‐67 polyhedrals prepared via a seed‐mediated growth method. The resultant hollow frameworks are composed of the N‐doped carbon as the inner shells and the porous graphitic carbon embedded with cobalt nanoparticles as the outer shells. Benefiting from the unique hollow architecture with large surface area and good electrical conductivity, the electrode materials exhibit good electrochemical performance with improved specific capacities, high‐rate capability, and good cycling stability for Li‐ion batteries. More importantly, the quantitative kinetic analysis reveals the crucial contributions of N doping and the porous structure of graphitic carbon with cobalt nanoparticles for boosting the performance of carbon‐based materials. The rational design of the unique carbon‐based architecture and the understanding of the underlying mechanism for the charge storage process are crucial to construct advanced carbon‐based materials for high‐performance Li‐ion batteries.</jats:p>

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