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Preparation and electrochemical performance of porous carbon derived from polypyrrole

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2023, 33(2), pp.443-454
  • DOI : 10.1007/s42823-022-00434-7
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : June 8, 2022
  • Accepted : November 7, 2022
  • Published : March 1, 2023

Wu Lili 1 Chen Xinguo 1 Ding Chang 1 Wang Pitao 1 Luo Heming 1

1Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou, China

Accredited

ABSTRACT

Supercross-linked polymers are widely used as carbon precursor materials due to their abundant carbon sources and low cost. In this paper, a supercross-linked polymer was prepared by the solvothermal method. The supercross-linked polymer as a precursor and the PPyC-800-A was synthesized by activating this with KOH. The microstructure, structure, and electrochemical performances of porous carbon PPyC-800-A were studied at different of temperature and carbon alkali ratio. According to the results, the porous carbon PPyC-800-1:2 is mainly composed of a stack of spherical particles with a high surface area of 1427.03 m2 g−1, an average pore diameter of 2.32 nm, and a high specific capacitance of 217.7 F g−1 at a current density of 1.0 A g−1 in a 6 M KOH electrolyte. It’s retention rate is 97.58% after 5000 constant current charges and discharges. With a specific capacitance decay rate of 21.91 percent, an energy density of 11.96 Wh kg−1, and a power density of 500.0 W kg−1, the current density rises from 1.0 A g−1 to 10.0 A g−1, exhibiting remarkable electrochemical properties, cycling stability, and energy production performance This study contributes experimental ideas to the field of supercross-linked polymer-derived carbon materials and energy storage.

Citation status

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