Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors | |
C.Jiao; Z.J.Zhang; X.Y.Chen | |
刊名 | Nano
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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 |
内容类型 | 期刊论文 |
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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