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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
KeywordChemical Activation Hierarchical Nitrogen/sulfur Co-doping High Specific Surface Area
Source PublicationELECTROCHIMICA ACTA
2017-08-20
DOI10.1016/j.electacta.2017.05.192
Volume246Pages:59-67
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordHIGH-PERFORMANCE SUPERCAPACITORS ; OXYGEN REDUCTION REACTION ; DOUBLE-LAYER CAPACITORS ; METAL-ORGANIC FRAMEWORK ; HIGH-SURFACE-AREA ; ELECTROCHEMICAL CAPACITORS ; ENERGY-STORAGE ; DOPED GRAPHENE ; NANOTUBE ELECTRODES ; EVOLUTION REACTIONS
AbstractThe 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.
Language英语
WOS IDWOS:000406942800008
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149950
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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