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@article{ART002958865},
author={Yu Sangho and Sano Hideaki and Zheng Guobin},
title={Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors},
journal={Carbon Letters},
issn={1976-4251},
year={2022},
volume={32},
number={1},
pages={285-294},
doi={10.1007/s42823-021-00301-x}

TY - JOUR
AU - Yu Sangho
AU - Sano Hideaki
AU - Zheng Guobin
TI - Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors
JO - Carbon Letters
PY - 2022
VL - 32
IS - 1
PB - Korean Carbon Society
SP - 285
EP - 294
SN - 1976-4251
AB - In this work, the sulfonic acid group was introduced into the resorcinol–formaldehyde (RF) microspheres by the addition of p-phenolsulfonic acid during the polycondensation process of RF. The hydrophilicity of the sulfonated RF allowed KOH to infiltrate inside the microspheres, which enhanced the formation of mesopores in the carbon microspheres during the activation process by KOH. SEM and TEM observations and N2 adsorption measurements verified the formation of abundant mesopores in the porous carbon microspheres. The BET surface area of these mesoporous carbons exceeded 2000 m2/g. In 17 m NaClO4 “water-in-salt” (WIS) electrolyte-based supercapacitor, the synthesized mesoporous carbon exhibited high specific capacitance of 170 F/g at current density of 0.5 A/g, comparable to those in regular KOH electrolyte. When graphite was used as current collectors, the symmetric cell could operate at 2.5 V, and the mesoporous carbon exhibited an energy density of 43 Wh/kg at power density of 0.25 kW/kg, and 25 Wh/kg at power density of 6.25 kW/kg, respectively, which were superior to those using Pt or stainless steel as current collectors. The mesoporous carbon/graphite was an excellent electrode in new-generation “WIS” electrolyte-based high-voltage supercapacitor due to their high energy and power density.
KW - Porous carbon;Resorcinol–formaldehyde;p-Phenolsulfonic acid;KOH activation WIS;Supercapacitor
DO - 10.1007/s42823-021-00301-x
ER -

Yu Sangho, Sano Hideaki and Zheng Guobin. (2022). Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors. Carbon Letters, 32(1), 285-294.

Yu Sangho, Sano Hideaki and Zheng Guobin. 2022, "Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors", Carbon Letters, vol.32, no.1 pp.285-294. Available from: doi:10.1007/s42823-021-00301-x

Yu Sangho, Sano Hideaki, Zheng Guobin "Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors" Carbon Letters 32.1 pp.285-294 (2022) : 285.

Yu Sangho, Sano Hideaki, Zheng Guobin. Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors. 2022; 32(1), 285-294. Available from: doi:10.1007/s42823-021-00301-x

Yu Sangho, Sano Hideaki and Zheng Guobin. "Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors" Carbon Letters 32, no.1 (2022) : 285-294.doi: 10.1007/s42823-021-00301-x

Yu Sangho; Sano Hideaki; Zheng Guobin. Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors. Carbon Letters, 32(1), 285-294. doi: 10.1007/s42823-021-00301-x

Yu Sangho; Sano Hideaki; Zheng Guobin. Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors. Carbon Letters. 2022; 32(1) 285-294. doi: 10.1007/s42823-021-00301-x

Yu Sangho, Sano Hideaki, Zheng Guobin. Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors. 2022; 32(1), 285-294. Available from: doi:10.1007/s42823-021-00301-x

Yu Sangho, Sano Hideaki and Zheng Guobin. "Mesoporous carbon microspheres fabricated from KOH activation of sulfonated resorcinol–formaldehyde for “water-in-salt” electrolyte-based high-voltage (2.5 V) supercapacitors" Carbon Letters 32, no.1 (2022) : 285-294.doi: 10.1007/s42823-021-00301-x