| Promising biomass-based activated carbons derived from willow catkins for high performance supercapacitors | |
| Wang, Kai1,2; Zhao, Ning1; Lei, Shiwen1; Yan, Rui1,2; Tian, Xiaodong1,2; Wang, Junzhong1; Song, Yan1; Xu, Defang1,2; Guo, Quangui1; Liu, Lang1 | |
| 刊名 | Electrochimica acta
 |
| 2015-06-01 | |
| 卷号 | 166页码:1-11 |
| 关键词 | Willow catkins Activated carbon Waste biomass Supercapacitor Potassium hydroxide activation |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2015.03.048 |
| 通讯作者 | Song, yan(yansong1026@126.com) |
| 英文摘要 | Unusual sheets-like primary activated carbon particles interconnected into three-dimensional micrometer-level large pores were prepared from a novel biomass named willow catkins (wcs) by koh chemical activation process and used as electrode materials for supercapacitors. the pore structures, surface area and chemical properties could be facilely adjusted by changing the activation temperature. when the activation temperature increased from 600 to 800 degrees c, the specific surface area of the porous carbon product increased remarkably while the contents of nitrogen and oxygen co-doped decreased, which significantly affected the electrochemical properties of the porous carbon-based supercapacitors. the activated carbons from 600 degrees c activation possesses despite moderate specific surface area (645 m(2) g (1)), concentrated pore size distribution of 0.77 nm, but high nitrogen (2.51 wt.%) and oxygen (13.28 wt.%) contents, high graphitization degree as well as good electrical conductivity. the supercapacitors with the carbon electrode reached maximal specific capacitances of 340 f g (1) and high specific surface capacitance of 52.7 mu f cm (2) at the current density of 0.1 a g (1), good rate capability (231 f g (1) at 10 a g (1)) and good cycling stability (92% capacitance retention over 3000 cycles). the favorable capacitive performances make the waste biomass wcs act as a new resource of carbonaceous materials for high performance supercapacitors. (c) 2015 elsevier ltd. all rights reserved. |
| WOS关键词 | DOUBLE-LAYER CAPACITORS ; POROUS CARBONS ; PYROLYSIS CHARACTERISTICS ; HYDROTHERMAL CARBONS ; OXYGEN REDUCTION ; ENERGY-STORAGE ; KOH ACTIVATION ; COCONUT-SHELL ; CO2 CAPTURE ; HUMAN HAIR |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000354036200001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376560 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Song, Yan |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Kai,Zhao, Ning,Lei, Shiwen,et al. Promising biomass-based activated carbons derived from willow catkins for high performance supercapacitors[J]. Electrochimica acta,2015,166:1-11. |
| APA | Wang, Kai.,Zhao, Ning.,Lei, Shiwen.,Yan, Rui.,Tian, Xiaodong.,...&Liu, Lang.(2015).Promising biomass-based activated carbons derived from willow catkins for high performance supercapacitors.Electrochimica acta,166,1-11. |
| MLA | Wang, Kai,et al."Promising biomass-based activated carbons derived from willow catkins for high performance supercapacitors".Electrochimica acta 166(2015):1-11. |
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