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Facile and controllable synthesis of nitrogen self-doped chitosan-derived carbon for high-performance Li-ion batteries

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(1), pp.85-94
  • DOI : 10.1007/s42823-023-00612-1
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : June 16, 2023
  • Accepted : September 10, 2023
  • Published : February 1, 2024

Xia Wentao 1 Cheng Miao 1 Hu Jing 1 Liu Qianqian 1 Wei Tao 1 Wang Ruirui 1 Li Wanfei 1 Liu Bo 1

1Suzhou Key Laboratory for Nanophotonic and Nanoelectronic Materials

Accredited

ABSTRACT

N-doping content and configurations have a significant effect on the electrochemical performance of carbon anodes. Herein, we proposed a simple method to synthesize highly N self-doped chitosan-derived carbon with controllable N-doping types by introducing 2ZnCO3·3Zn(OH)2 into the precursor. The as-synthesized NC-CS/2ZnCO3·3Zn(OH)2 electrode exhibited more than twice the reversible capacity (518 mAh g−1 after 100 cycles at 200 mA g−1) compared to the NC-CS electrode, superior rate performance and outstanding cycling stability. The remarkable improvement should be mainly attributed to the increase of N-doping content (particularly the pyrrolic-N content), which provided more active sites and favored Li+ diffusion kinetics. This study develops a cost-effective and facile synthesis route to fabricate high-performance N self-doped carbon with tunable doping sites for rechargeable battery applications.

Citation status

Scopus Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.