Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors

doi:10.1142/s1793292019500425

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	Nitrogen and Fluorine Dual-Doped Carbon Nanosheets for High-Performance Supercapacitors
	C.Jiao; Z.J.Zhang; X.Y.Chen
	2019
发表期刊	Nano
ISSN	1793-2920
卷号	14 期号:4 页码:15
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.
关键词	Carbon nanosheets,dopant,nitrogen,fluorine,supercapacitor,activated carbon,electrochemical performance,template synthesis
DOI	10.1142/s1793292019500425
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	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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