Journal
MATERIALS LETTERS
Volume 263, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2019.127222
Keywords
p-Xylene; Hypercross-linking; Supercapacitors; EDLC; Pyrolysis
Funding
- BK 21 PLUS, Creative Human Resource Development Program for IT Convergence, Pusan National University, Busan, South Korea
- UAEU Program for Advanced Research (UPAR) [31S312]
Ask authors/readers for more resources
Herein, we report for the first time the synthesis of porous carbon which is derived from hypercross-linking of p-xylene through Friedel-Crafts alkylation and subsequent carbonization at 800 degrees C for supercapacitor applications. The formation of hypercross-linking in p-xylene was confirmed by Fourier transform infra-red (FT-IR) spectroscopy. The synthesized materials, hypercross-linked p-xylene (HCP-pXy) and pyrolyzed HCP-pXy (HCP-pXy-800) were studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen sorption isotherm and powder x-ray diffraction (XRD) pattern. In a three-electrode system, HCP-pXy-800 electrode showed a specific capacitance of 242.5 F g(-1) at a current density of 1.25 A g(-1) in a 3 M KOH aqueous electrolyte. Furthermore, the specific capacitance at a current density of 1.2 5 A g(-1) remained 95.18% after 2000 charge-discharge cycles and thus illustrating a predominant cyclic stability of the p-xylene derived porous carbon electrode. (C) 2019 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available