Skip to main navigation Skip to search Skip to main content

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

  • Danyun Lei*
  • , Xiang Dan Li
  • , Min Jung Ma
  • , Da Young Kim
  • , Jae Hyun Noh
  • , Byoung Suhk Kim*
  • *Corresponding author for this work
  • Wuchang Shouyi University
  • South-Central University for Nationalities
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

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.

Original languageEnglish
Pages (from-to)699-711
Number of pages13
JournalCarbon Letters
Volume33
Issue number3
DOIs
StatePublished - 2023.05

Keywords

  • Activated carbon nanofiber
  • Mixed salt activation
  • Phenolic resin
  • Polyacrylonitrile

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Electrical & Electronic
  • Engineering - Petroleum
  • Engineering - Chemical
  • Chemistry

Fingerprint

Dive into the research topics of 'Salt-activated phenolic resin/PAN-derived core-sheath nanostructured carbon nanofiber composites for capacitive energy storage'. Together they form a unique fingerprint.

Cite this