Carbonaceous materials are practical anodes for lithium-ion batteries. Commercial graphite anode has a limited theoretical capacity of 372 mAh g−1. Amorphous carbon anode could break the capacity limitation of the graphite anode, while nitrogen doping plays a critical role in effectively enhancing the reversible capacities and rate capability of carbonaceous anodes. Herein, we propose a new strategy for synthesizing nitrogen-doped carbon materials from graphitic carbon nitride. Zinc-assisted thermal treatment of graphitic carbon nitride enables the carbonization of graphitic carbon nitride and successful preparation of highly nitrogen-doped carbon. The obtained nitrogen-doped carbon material is doped with a high-level nitrogen of 21.6 at. % which enables high reversible capacity and rate capability. This work puts forward a new synthesis protocol of nitrogen-doped carbon materials for promising anodes of lithium-ion batteries.
Bibliographical noteKAUST Repository Item: Exported on 2021-06-08
Acknowledgements: The authors acknowledge the financial support from the National Key Research and Development Plan (Grant NO. 2018YFB1501503), the National Natural Science Foundation of China (Grant NO. 22038004), the Research and Development Program in Key Fields of Guangdong Province (2020B1111380002). Wenli Zhang acknowledges the start-up funding of Guangdong University of Technology (GDUT).
ASJC Scopus subject areas
- Chemical Engineering(all)
- Applied Mathematics
- Industrial and Manufacturing Engineering