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Morphochemical imprinting of melamine cyanurate mesocrystals in glucose-derived carbon for high performance lithium ion batteries

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Fechler,  Nina
Nina Fechler, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Kim, J. H., Byeon, M., Jeong, Y. C., Oh, J. Y., Jung, Y., Fechler, N., et al. (2017). Morphochemical imprinting of melamine cyanurate mesocrystals in glucose-derived carbon for high performance lithium ion batteries. Journal of Materials Chemistry A, 5(39), 20635-20642. doi:10.1039/C7TA05853E.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-C93C-E
Abstract
A novel dual imprinting method is suggested to synthesize pyridinic N-enriched, hierarchically porous carbon. Rose-like melamine cyanurate (MCA) mesocrystal is prepared by simple self-assembly and utilized as a sacrificial template. The unique morphological and chemical features of the MCA are imprinted into the carbon source during carbonization. Curled graphene-like layers with a high nitrogen content (19.9 at%, especially 8.9 at% of pyridinic N) are interconnected to form a unique red blood cell-shaped morphology with a hierarchical pore structure. The resulting material exhibits outstanding electrochemical performance (2019 mAh g-1 at 100 mA g-1 and 643 mAh g-1 at 2000 mA g-1 after 250 cycles) when evaluated as an anode material for lithium ion batteries. Furthermore, this novel imprinting strategy can provide a simple and efficient methodology to produce pyridinic N-enriched, hierarchically porous carbonaceous materials for extensive applications.