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Nitrogen/sulfur co-doping assisted chemical activation for synthesis of hierarchical porous carbon as an efficient electrode material for supercapacitors
Qi, Fulai1,2; Xia, Zhangxun1; Wei, Wei1; Sun, Hai1; Wang, Suli1; Sun, Gongquan1
关键词Chemical Activation Hierarchical Nitrogen/sulfur Co-doping High Specific Surface Area
刊名ELECTROCHIMICA ACTA
2017-08-20
DOI10.1016/j.electacta.2017.05.192
246页:59-67
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]HIGH-PERFORMANCE SUPERCAPACITORS ; OXYGEN REDUCTION REACTION ; DOUBLE-LAYER CAPACITORS ; METAL-ORGANIC FRAMEWORK ; HIGH-SURFACE-AREA ; ELECTROCHEMICAL CAPACITORS ; ENERGY-STORAGE ; DOPED GRAPHENE ; NANOTUBE ELECTRODES ; EVOLUTION REACTIONS
英文摘要The microstructure of carbon materials in terms of its specific surface area and pore structure by its activation, are the key issues which determine the electrochemical performance of supercapacitors. In this work, we developed a particular chemical activation process assisted by nitrogen/sulfur co-doping for the preparation of hierarchical porous carbon materials with high specific surface area, aiming at improving the energy density of supercapacitors. The as-obtained hierarchical porous carbon materials exhibited both high Brunauer-Emmett-Teller surface area of up to 3652 m(2) g(-1) for more ions adsorption and high porosity (2.61 cm(3) g(-1)) for rapid ion transport. Attributed to the synergistic effects of these two features, the porous carbon displays high gravimetric specific capacitance (324 F g(-1)) in KOH aqueous electrolyte with outstanding rate performance (73.3% capacitance retention at 100 A g(-1)). The symmetrical supercapacitor based on our hierarchical porous carbon displays a maximum specific energy of 9.76 Wh kg(-1) and 94.5% retention over 10000 cycles at 15 A g(-1). This synthesis strategy is facile, low-cost and industrialized, which provide a promising route to prepare the hierarchical porous carbon materials for energy storage and renewable delivery devices. (C) 2017 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000406942800008
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149850
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cell & Battery, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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Qi, Fulai,Xia, Zhangxun,Wei, Wei,et al. Nitrogen/sulfur co-doping assisted chemical activation for synthesis of hierarchical porous carbon as an efficient electrode material for supercapacitors[J]. ELECTROCHIMICA ACTA,2017,246:59-67.
APA Qi, Fulai,Xia, Zhangxun,Wei, Wei,Sun, Hai,Wang, Suli,&Sun, Gongquan.(2017).Nitrogen/sulfur co-doping assisted chemical activation for synthesis of hierarchical porous carbon as an efficient electrode material for supercapacitors.ELECTROCHIMICA ACTA,246,59-67.
MLA Qi, Fulai,et al."Nitrogen/sulfur co-doping assisted chemical activation for synthesis of hierarchical porous carbon as an efficient electrode material for supercapacitors".ELECTROCHIMICA ACTA 246(2017):59-67.
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