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 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.
PY - 2019/12/23
Y1 - 2019/12/23
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.
UR - http://hdl.handle.net/10754/661306
UR - https://linkinghub.elsevier.com/retrieve/pii/S0167577X19318543
UR - http://www.scopus.com/inward/record.url?scp=85077382295&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2019.127222
DO - 10.1016/j.matlet.2019.127222
M3 - Article
SN - 0167-577X
VL - 263
SP - 127222
JO - Materials Letters
JF - Materials Letters
ER -