Document Type
Article
Publication Date
4-17-2024
Abstract
Nitrogen-functionalized carbon nanofibers (N-CNFs) were prepared by carbonizing polypyrrole (PPy)-coated cellulose NFs, which were obtained by electrospinning, deacetylation of electrospun cellulose acetate NFs, and PPy polymerization. Supercapacitor electrodes prepared from N-CNFs and a mixture of N-CNFs and Ni(OH)2 showed specific capacitances of ∼236 and ∼1045 F g-1, respectively. An asymmetric supercapacitor was further fabricated using N-CNFs/Ni(OH)2 and N-CNFs as positive and negative electrodes. The supercapacitor device had a working voltage of 1.6 V in aqueous KOH solution (6.0 M) with an energy density as high as ∼51 (W h) kg−1 and a maximum power density of ∼117 kW kg-1. The device had an excellent cycle lifetime, which retained ∼84% specific capacitance after 5000 cycles of cyclic voltammetry scans. N-CNFs derived from electrospun cellulose may be useful as an electrode material for the development of high-performance supercapacitors and other energy storage devices.
Recommended Citation
Chaudhari, Kemila, "High-Performance Supercapacitor Electrode Materials from Cellulose-Derived Carbon Nanofibers" (2024). Posters. 2.
https://digitalcommons.pittstate.edu/posters_2024/2