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Salt-activated phenolic resin/PAN-derived core-sheath nanostructured carbon nanofiber composites for capacitive energy storage

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2023, 33(3), pp.699-711
  • DOI : 10.1007/s42823-022-00451-6
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : October 14, 2022
  • Accepted : December 20, 2022
  • Published : May 1, 2023

Lei Danyun 1 Li Xiang-Dan 2 Ma Min-Jung 3 Kim Da-Young 3 Noh Jae-Hyun 3 Kim Byoung-Suhk 3

1College of Urban Construction, Wuchang Shouyi University
2Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, South-Central University for Nationalities
3Jeonbuk National University

Accredited

ABSTRACT

In this study, we have fabricated the phenolic resin (PR)/polyacrylonitrile (PAN) blend-derived core-sheath nanostructured carbon nanofibers (CNFs) via one-pot solution electrospinning. The obtained core-sheath nanostructured carbon nanofibers were further treated by mixed salt activation process to develop the activated porous CNFs (CNF-A). Compared to pure PAN-based CNFs, the activated PR/PAN blend with PR 20% (CNF28-A)-derived core-sheath nanostructured CNFs showed enhanced specific capacitance of ~ 223 F g−1 under a three-electrode configuration. Besides, the assembled symmetric CNF28-A//CNF28-A device possessed a specific capacitance of 76.7 F g−1 at a current density of 1 A g−1 and exhibited good stability of 111% after 5,000 galvanostatic charge/discharge (GCD) cycles, which verifies the outstanding long-term cycle stability of the device. Moreover, the fabricated supercapacitor device delivered an energy density of 8.63 Wh kg−1 at a power density of 450 W kg−1.

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (7) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (8) 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)

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