Cobalt and Nitrogen Co-Doped Nano-Porous Carbon: Synthesis and Application for Lithium-Sulfur Battery ()
ABSTRACT
S@C-Co-N nanoporous carbon co-doped with cobalt and nitrogen as the cathode of lithium-sulfur battery are prepared. The synthetic route is carried out via the carbonization of metal organic frameworks polyhedron ZIF-67, followed by the heat treatment with sulfur. The SEM images suggest that C-Co-N composite maintains almost the same size and polyhedron shape of ZIF-67. The XRD pattern confirms the existence of cobalt element. As cathode for lithium-sulfur battery, the S@C-Co-N composite delivers a reversible capacity of 916.6 mAh?g?1 at the initial cycle and 460.5 mAh?g?1 after 500 cycles at 0.5 C, with a capacity fading of 0.09% per cycle.
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Luo, S. , Zheng, C. , Li, Y. and Liu, S. (2017) Cobalt and Nitrogen Co-Doped Nano-Porous Carbon: Synthesis and Application for Lithium-Sulfur Battery.
Journal of Power and Energy Engineering,
5, 16-20. doi:
10.4236/jpee.2017.512003.