Facile synthesis of mesoporous and highly nitrogen/sulfur dual-doped graphene and its ultrahigh discharge capacity in non-aqueous lithium oxygen batteries

  • Seokhoon Jang
  • Jieun Kim
  • Eunbeen Na
  • Mingyu Song
  • Jinkyu Choi
  • KyongHwa Song
  • Sung-Hyeon BaeckEmail author
  • Sang Eun ShimEmail author
Original Article


High-level heteroatom, N and S, dual-doped graphene with an improved mesoporous structure was fabricated via facile in situ carbonization and used as metal-free cathode for non-aqueous lithium oxygen batteries. The prepared cathode delivered an ultrahigh specific capacity of 22,252 mAh/g at a current density of 200 mA/g as well as better cycling reversibility because of the larger and copious mesopores, which can promote the penetration of oxygen, electrons, and lithium ions and the ability to accommodate more discharge products, e.g., Li2O2, in Li–O2 batteries. The material had a high level of heteroatom co-doping in the carbon lattice, which enhanced the electrical conductivity and served as active sites for the oxygen reduction reaction.


Lithium oxygen battery Graphene Carbonization Doping Mesoporosity 



This work was supported financially by Hyundai Motor Company, S. Korea.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Korean Carbon Society 2019

Authors and Affiliations

  • Seokhoon Jang
    • 1
  • Jieun Kim
    • 1
  • Eunbeen Na
    • 1
  • Mingyu Song
    • 1
  • Jinkyu Choi
    • 1
  • KyongHwa Song
    • 2
  • Sung-Hyeon Baeck
    • 1
    Email author
  • Sang Eun Shim
    • 1
    Email author
  1. 1.Department of Chemistry and Chemical EngineeringInha UniversityIncheonRepublic of Korea
  2. 2.Research and Development DivisionHyundai Motor CompanyUiwang-siRepublic of Korea

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