TY - JOUR
T1 - Novel porous carbon material derived from hypercross-linked polymer of p-xylene for supercapacitors electrode
AU - Kim, Sang Hyo
AU - Vinodh, Rajangam
AU - Gopi, Chandu V.V.Muralee
AU - Kummara, Venkata Guru Raghavendra
AU - Sambasivam, Sangaraju
AU - Obaidat, Ihab M.
AU - Kim, Hee Je
N1 - Funding Information:
The authors gratefully acknowledge the financial support from BK 21 PLUS, Creative Human Resource Development Program for IT Convergence, Pusan National University , Busan, South Korea. Also, this work was supported by UAEU Program for Advanced Research (UPAR) under grant No. 31S312 . Appendix A
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/3/15
Y1 - 2020/3/15
N2 - 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 °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.
AB - 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 °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.
KW - EDLC
KW - Hypercross-linking
KW - Pyrolysis
KW - Supercapacitors
KW - p-Xylene
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U2 - 10.1016/j.matlet.2019.127222
DO - 10.1016/j.matlet.2019.127222
M3 - Article
AN - SCOPUS:85077382295
SN - 0167-577X
VL - 263
JO - Materials Letters
JF - Materials Letters
M1 - 127222
ER -