KOH-activated nitrogen doped porous carbon nanowires with superior performance in supercapacitors | |
Wang, Bin2; Qiu, Jianhui1,2; Feng, Huixia3; Sakai, Eiichi2; Komiyama, Takao2 | |
刊名 | ELECTROCHIMICA ACTA
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2016-02 | |
卷号 | 190页码:229-239 |
关键词 | Nitrogen doped carbon nanowires KOH activation supercapacitors |
ISSN号 | 0013-4686 |
DOI | 10.1016/j.electacta.2016.01.038 |
英文摘要 | 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 m(2) g(-1)) and capacitance (291 F g(-1) at the current density of 1 Ag-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. (C) 2016 Elsevier Ltd. All rights reserved. |
资助项目 | Fundamental Research Funds for the Universities of Gansu[1105ZTC136] |
WOS研究方向 | Electrochemistry |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000371141500028 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.223/handle/2XXMBERH/33792] ![]() |
专题 | 石油化工学院 教务处(创新创业学院) |
通讯作者 | Qiu, Jianhui |
作者单位 | 1.Chongqing Univ, Coll Aerosp Engn, Shazheng Rd, Chongqing 400030, Peoples R China 2.Akita Prefectural Univ, Fac Syst Engn, Dept Machine Intelligence & Syst Engn, Akita 0150055, Japan 3.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, 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. |
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