3 years ago

In Situ Formation of Co9S8/N-C Hollow Nanospheres by Pyrolysis and Sulfurization of ZIF-67 for High-Performance Lithium-Ion Batteries

In Situ Formation of Co9S8/N-C Hollow Nanospheres by Pyrolysis and Sulfurization of ZIF-67 for High-Performance Lithium-Ion Batteries
Jianwen Li, Kaifeng Zhuo, Zhen Fang, Peiyuan Zeng, Ming Ye
A nanocomposite based on the homogeneous dispersion of Co9S8 nanoparticles within the shell of N-rich carbon hollow spheres (Co9S8/N-C) was prepared by an in situ pyrolysis and sulfurization process, employing the CoII-imidazole coordination polymer ZIF-67 as the precursor. The as-prepared Co9S8/N-C hollow nanospheres exhibit good electrochemical performance and long-term cycling stability (≈784 mAh g−1 at 1 C after 400 cycles) when applied as anode material for lithium-ion batteries, which likely results from the unique hollow hybrid structures. More information can be found in the Full Paper by Z. Fang et al. (DOI: 10.1002/chem.201700881).

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201701422

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