A new kind of redox electrolyte electrochemical capacitor system
文献类型：期刊论文
| 作者 | Li Qing; Li Kai-Xi; Sun Guo-Hua; Fan Hui; Gu Jian-Yu |
| 刊名 | Acta physico-chimica sinica
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 22期号:12页码:1445-1450 |
| ISSN号 | 1000-6818 |
| 关键词 | Electrochemical capacitor Faradic pseudocapacitance Porous carbon Fe3+/fe2+ ion pair Electrosorption |
| DOI | 10.3866/pku.whxb20061203 |
| 通讯作者 | Li kai-xi(likx99@yahoo.com) |
| 英文摘要 | The electrochemical characteristics and pseudocapacitive effects of fe3+/fe2+ ion pair were investigated in an electrochemical capacitor (ec) system using porous carbon as electrode material and with h2so4 solution containing fe3+/fe2+ ion pair as electrolyte. the cyclic voltammetric results indicated that highly reversible electrochemical redox reactions of fe3+/fe2+ ion pair occurred within the nano-pore structures of the porous carbon electrodes. symmetrical charge/discharge cycles were achieved due to the existence of fe3+/fe2+ ion pair, which effectively improved the capacity of the electrochemical capacitor system. apart from its excellent cyclic stability, the specific capacitance of the single electrode system reached 174 mah center dot g(-1), which is 109 mah center dot g(-1) higher than that obtained for h2so4 as the electrolyte. the charge/discharge mechanism of fe3+/fe2+ ion pair in the ec systems was discussed and a new type of redox electrolyte electrochemical capacitor was suggested. |
| WOS关键词 | POLYMERIC ELECTROLYTES ; SUPERCAPACITORS ; STORAGE ; ENERGY |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| 出版者 | PEKING UNIV PRESS |
| WOS记录号 | WOS:000243084000003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379771 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li Kai-Xi |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Qing,Li Kai-Xi,Sun Guo-Hua,et al. A new kind of redox electrolyte electrochemical capacitor system[J]. Acta physico-chimica sinica,2006,22(12):1445-1450. |
| APA | Li Qing,Li Kai-Xi,Sun Guo-Hua,Fan Hui,&Gu Jian-Yu.(2006).A new kind of redox electrolyte electrochemical capacitor system.Acta physico-chimica sinica,22(12),1445-1450. |
| MLA | Li Qing,et al."A new kind of redox electrolyte electrochemical capacitor system".Acta physico-chimica sinica 22.12(2006):1445-1450. |
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来源：中国科学院大学
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