Facile synthesis of functionalized porous carbon with three-dimensional interconnected pore structure for high volumetric performance supercapacitors

Functionalized porous carbon with three-dimensional (3D) interconnected pore structure has been successfully synthesized through direct heat-treatment of KOH-soaked soybeans. Benefiting from heteroatoms (N, O) doping, interconnected porous carbon framework with high surface area as well as high pack...

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Veröffentlicht in:	Carbon (New York) 2015-11, Vol.93, p.412-420
Hauptverfasser:	Long, Conglai, Jiang, Lili, Wu, Xiaoliang, Jiang, Yuting, Yang, Deren, Wang, Caikun, Wei, Tong, Fan, Zhuangjun
Format:	Artikel
Sprache:	eng
Schlagworte:	Capacitance Capacitors Carbon Energy density Heat treatment Porosity Supercapacitors Three dimensional
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container_title	Carbon (New York)
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creator	Long, Conglai Jiang, Lili Wu, Xiaoliang Jiang, Yuting Yang, Deren Wang, Caikun Wei, Tong Fan, Zhuangjun
description	Functionalized porous carbon with three-dimensional (3D) interconnected pore structure has been successfully synthesized through direct heat-treatment of KOH-soaked soybeans. Benefiting from heteroatoms (N, O) doping, interconnected porous carbon framework with high surface area as well as high packing density (up to 1.1gcm−3), the as-obtained porous carbon material exhibits high volumetric capacitance of 468Fcm−3, good rate capability and excellent cycling stability (91% of capacitance retention after 10,000 cycles) in 6M KOH electolyte. More importantly, the as-assembled symmetric supercapacitor delivers high volumetric energy density of 28.6WhL−1 in 1M Na2SO4 aqueous solution.
doi_str_mv	10.1016/j.carbon.2015.05.040
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subjects	Capacitance Capacitors Carbon Energy density Heat treatment Porosity Supercapacitors Three dimensional
title	Facile synthesis of functionalized porous carbon with three-dimensional interconnected pore structure for high volumetric performance supercapacitors
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