Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors
文献类型：期刊论文
| 作者 | C.Jiao; Z.J.Zhang; X.Y.Chen |
| 刊名 | Nano
 |
| 出版日期 | 2019 |
| 卷号 | 14期号:4页码:15 |
| 关键词 | Carbon nanosheets,dopant,nitrogen,fluorine,supercapacitor,activated carbon,electrochemical performance,template synthesis |
| ISSN号 | 1793-2920 |
| DOI | 10.1142/s1793292019500425 |
| 英文摘要 | Doping carbon materials with heteroatoms such as N, F is an effective approach to elevating the capacitive performance of supercapacitors. In this paper, nitrogen and fluorine dual-doped two-dimensional (2D) porous carbon nanosheets (PCNSs) have been fabricated by a straightforward template carbonization method, using trisodium citrate as carbon source and self-template, and ammonium fluoride as N/F dopants. The N/F-doped carbon samples are well characterized by a series of techniques and measured in a three-electrode system and two-electrode system, respectively. As a result, N/F-doped carbon has delivered large capacitance of 110 F g(-1) at 1 A g(-1) and high-energy density of 3.82 W h kg(-1) at the power density of 0.5 kW kg(-1). It is also revealed that semi-ionic C-F bonds in PCNSs have enhanced electrical conductivity, hence, facilitating electron transport in the electrode. For comparison, ammonium chloride is used as sole dopant for producing N-doped carbon materials, whose capacitive performances are much lower than the N/F-codoped one, indicating the synergistic effect of N/F for capacitive improvement. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/63298]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | C.Jiao,Z.J.Zhang,X.Y.Chen. Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors[J]. Nano,2019,14(4):15. |
| APA | C.Jiao,Z.J.Zhang,&X.Y.Chen.(2019).Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors.Nano,14(4),15. |
| MLA | C.Jiao,et al."Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors".Nano 14.4(2019):15. |
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