N-Doped Porous Carbon Derived from Solvent-Free Synthesis of Cross-Linked Triazine Polymers for Simultaneously Achieving CO2 Capture and Supercapacitors

Yuan Wang, Jianfei Xiao, Hanzhi Wang, Tian C. Zhang, Shaojun Yuan

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

It is highly desirable to design advanced heteroatomic doped porous carbon for wide application. Herein, N-doped porous carbon (NPC) was developed via the fabrication of high nitrogen cross-linked triazine polymers followed by pyrolysis and activation with controllable porous structure. The as-synthesized NPC at the pyrolysis temperature of 700 °C possessed rich nitrogen content (up to 11.51 %) and high specific surface area (1353 m2 g−1), which led to a high CO2 adsorption capability at 5.67 mmol g−1 at 298.15 K and 5 bar pressure and excellent stability. When the activation temperature was at 600 °C, such NPC exhibited a superior electrochemical performance as anode for supercapacitors with a specific capacitance of 158.8 and 113 F g−1 in 6 M KOH at a current density of 1 and 10 A g−1, respectively. Notably, it delivered an excellent stability with capacity retention of 97.4 % at 20 A g−1after 6000 cycles.

Original languageEnglish (US)
Pages (from-to)7908-7914
Number of pages7
JournalChemistry - A European Journal
Volume27
Issue number29
DOIs
StatePublished - May 20 2021

Keywords

  • CO uptake
  • nitrogen doping
  • porous carbon
  • supercapacitors
  • triazine

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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