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 language | English |
|---|---|
| Pages (from-to) | 699-711 |
| Number of pages | 13 |
| Journal | Carbon Letters |
| Volume | 33 |
| Issue number | 3 |
| DOIs | |
| State | Published - 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
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