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学科主题: 物理化学
题名: Effect of activation on the carbon fibers from phenol-formaldehyde resins for electrochemical supercapacitors
作者: Xue, Rong1;  Yan, Jingwang1;  Liu, Xiaoxue1;  Tian, Ying1;  Yi, Baolian1
通讯作者: 阎景旺
关键词: Carbon fiber ;  Electrochemical supercapacitors ;  Phenol-formaldehyde resin ;  Activation
刊名: JOURNAL OF APPLIED ELECTROCHEMISTRY
发表日期: 2011-11-01
DOI: 10.1007/s10800-011-0357-1
卷: 41, 期:11, 页:1357-1366
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 3T1
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
摘要: Effect of activation on the carbon fibers from phenol-formaldehyde resins for electrochemical supercapacitors
研究领域[WOS]: Electrochemistry
英文摘要: Activated carbon fibers (ACF) are prepared from phenol-formaldehyde resin fibers through chemical activation and physical activation methods. The chemical activation process consisted of KOH, whereas the physical activation was performed by activation in CO(2). The characteristics of the electrochemical supercapacitors with carbon fibers without activation (CF), carbon fibers activated by CO(2) (ACF-CO(2)), and carbon fibers activated by KOH (ACF-KOH) have been compared. The activated carbon fibers from phenol-formaldehyde resins present a broader potential range in aqueous electrolytes than activated carbon and other carbon fibers. Activation does not produce any important change in the shape of starting fibers. However, activation leads to surface roughness and larger surface areas as well as an adapted pore size distribution. The higher surface areas of fibers treated by KOH exhibited higher specific capacitances (214 and 116 F g(-1) in aqueous and organic electrolytes, respectively) and good rate capability. Results of this study suggest that the activated carbon fiber prepared by chemical activation is a suitable electrode material for high performance electrochemical supercapacitors.
关键词[WOS]: DOUBLE-LAYER CAPACITORS ;  KOH ;  PERFORMANCE ;  ELECTRODES ;  OXIDATION
语种: 英语
WOS记录号: WOS:000295988700013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115424
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Xue, Rong,Yan, Jingwang,Liu, Xiaoxue,et al. Effect of activation on the carbon fibers from phenol-formaldehyde resins for electrochemical supercapacitors[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY,2011,41(11):1357-1366.
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