Carbon nitride derived nitrogen-doped carbon nanosheets for high-rate lithium-ion storage

Embargo End Date
2023-05-07

Type
Article

Authors
Zhang, Wenli
Yin, Jian
Chen, Cailing
Qiu, Xueqing

KAUST Department
Physical Science and Engineering (PSE) Division
Advanced Membranes and Porous Materials Research Center

Online Publication Date
2021-04-27

Print Publication Date
2021-09

Date
2021-04-27

Submitted Date
2021-02-02

Abstract
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.

Citation
Zhang, W., Yin, J., Chen, C., & Qiu, X. (2021). Carbon nitride derived nitrogen-doped carbon nanosheets for high-rate lithium-ion storage. Chemical Engineering Science, 241, 116709. doi:10.1016/j.ces.2021.116709

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).

Publisher
Elsevier BV

Journal
Chemical Engineering Science

DOI
10.1016/j.ces.2021.116709

Additional Links
https://linkinghub.elsevier.com/retrieve/pii/S0009250921002748

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