Chinese Journal of Applied Chemistry ›› 2024, Vol. 41 ›› Issue (12): 1742-1750.DOI: 10.19894/j.issn.1000-0518.240163

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Preparation of Hypercrosslinked Poly(Naphthalene-based) Microporous Carbon and Its Electrochemical Properties

Sheng-Long HU1(), Zhen-Long LEI2, De-Jun CHEN1   

  1. 1.Lanzhou Auxiliary Agent Plant Company Limited,Lanzhou 730311,China
    2.School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China
  • Received:2024-05-22 Accepted:2024-11-10 Published:2024-12-01 Online:2025-01-02
  • Contact: Sheng-Long HU
  • About author:hushenglong@lanquan.com
  • Supported by:
    Lanzhou Talent Innovation and Entrepreneurship Project(2021-RC-20)

Abstract:

With superior chemical stability, high specific surface area and porosity, the hypercrosslinked polymers are of great interests in the field of energy conversion and storage. Here, a hypercrosslinked poly(naphthalene-based) polymer (MON) was synthesized using an external cross-linking agent via a novel “knitting” method. Following this, MON-derived microporous carbon (MONC-800-2) was prepared via chemical activation for advanced supercapacitors. The MONC-800-2 features a high specific surface area of 2002.90 m2/g and microporosity of 90.10%. The MONC-800-2 shows a superior specific capacity of 254.0 F/g at current density of 1.0 A/g. Consequently, the assembled symmetrical supercapacitor with MONC-800-2 displays a high specific capacity of 43.0 F/g, superior cycling stability (with a capacity retention rate of 94.55% at 2.0 A/g over 5000 cycles), high Coulomb efficiency of 99.91%, and good energy density of 5.97 Wh/kg at a power density of 500 W/kg. This work offers valuable insights into the application of hypercrosslinked polymers-derived carbon materials in supercapacitors.

Key words: Supercapacitor, Electrode material, Carbon material, Precursor, Hypercrosslinked polymer

CLC Number: