KOH-activated nitrogen doped porous carbon nanowires with superior performance in supercapacitors

doi:10.1016/j.electacta.2016.01.038

	KOH-activated nitrogen doped porous carbon nanowires with superior performance in supercapacitors
	Wang, Bin 1; Qiu, Jianhui 1,3; Feng, Huixia2 ; Sakai, Eiichi 1; Komiyama, Takao 1
	2016-02-01
发表期刊	Electrochimica Acta
ISSN	00134686
卷号	190 页码:229-239
摘要	Nitrogen-doped porous carbon nanowires were prepared by KOH activation of nitrogen doped carbon nanowires derived from direct carbonization of polypyrrole nanowires. The porous structure and nitrogen content were closely related to the mass ratio of KOH and carbon nanowires. The resultant nanowires demonstrated the highest specific surface area (1642 m2 g-1) and capacitance (291 F g-1 at the current density of 1 A g-1 in three-electrode systems), when the mass ratio of KOH and nitrogen doped carbon nanowires reached 2. It also exhibited the excellent high rate performance and good cycle stability (94.8% capacitance retention after 5000 cycles) in three-electrode systems. High energy density (21.9 Wh kg-1 at a current density of 0.4 A g-1 in 0-1.6 V) and good cycle stability (the capacitance retention of 98.1% over 5000 cycles) were shown in symmetric two-electrode systems. These excellent electrochemical performances could be attributed to the high surface area, unique micro/meso/macroporous structure, and optimized nitrogen content. © 2016 Elsevier Ltd. All rights reserved.
关键词	Capacitance Carbon Carbonization Chemical activation Electrodes Nanowires Nitrogen Polypyrroles Porous materials Potassium hydroxide Supercapacitor System stability Carbon nanowire Direct carbonizations Electrochemical performance KOH activation Nitrogen-doped Nitrogen-doped carbons Three electrode-system Two-electrode systems
DOI	10.1016/j.electacta.2016.01.038
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000371141500028
出版者	Elsevier Ltd
EI入藏号	20160301821346
EI主题词	Doping (additives)
EI分类号	701.1 Electricity: Basic Concepts and Phenomena ; 761 Nanotechnology ; 802.2 Chemical Reactions ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds ; 815.1.1 Organic Polymers ; 933 Solid State Physics ; 951 Materials Science ; 961 Systems Science
引用统计	被引频次：81[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150197
专题	教务处（创新创业学院）
通讯作者	Qiu, Jianhui
作者单位	1.Akita Prefectural Univ, Fac Syst Engn, Dept Machine Intelligence & Syst Engn, Akita 0150055, Japan; 2.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 3.Chongqing Univ, Coll Aerosp Engn, Shazheng Rd, Chongqing 400030, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin,Qiu, Jianhui,Feng, Huixia,et al. KOH-activated nitrogen doped porous carbon nanowires with superior performance in supercapacitors[J]. Electrochimica Acta,2016,190:229-239.
APA	Wang, Bin,Qiu, Jianhui,Feng, Huixia,Sakai, Eiichi,&Komiyama, Takao.(2016).KOH-activated nitrogen doped porous carbon nanowires with superior performance in supercapacitors.Electrochimica Acta,190,229-239.
MLA	Wang, Bin,et al."KOH-activated nitrogen doped porous carbon nanowires with superior performance in supercapacitors".Electrochimica Acta 190(2016):229-239.