Highly conductive, hierarchical porous ultra-fine carbon fibers derived from polyacrylonitrile/polymethylmethacrylate/needle coke as binder-free electrodes for high-performance supercapacitors

doi:10.1016/j.jpowsour.2021.230943

CORC > 兰州理工大学 > 兰州理工大学

	Highly conductive, hierarchical porous ultra-fine carbon fibers derived from polyacrylonitrile/polymethylmethacrylate/needle coke as binder-free electrodes for high-performance supercapacitors
	Li, Xiangye 1,2; Zhao, Lei 1; He, Tieshi 1,3; Zhang, Minghui 1; Wang, Zhenzhen 1; Zhang, Bing 1; Weng, Xin 1
刊名	JOURNAL OF POWER SOURCES
	2022-02-15
卷号	521
关键词	Needle coke Electrospinning Carbon fibers Electrodes Supercapacitors
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2021.230943
英文摘要	Here, the treated ultra-fine needle coke particles (UNCs) are introduced in hierarchical porous ultra-fine carbon fibers by electrospinning and thermally treatment process of two immiscible polymers and UNCs precursor. The structure, morphology and electrochemical performance of the ultra-fine carbon fibers derived from polyacrylonitrile (PAN)/polymethylmethacrylate (PMMA)/UNCs are explored in detail. As a result, when the mass ratio of PAN to PMMA reaches 6: 4, the ultra-fine carbon fibers derived from PAN/PMMA/UNCs display a high surface area of 919.3 m(2) g(-1), a suitable mesoporous structure of meso/micro = 1.59. and exhibit a remarkable specific capacity (387.2 F g(-1) at 0.5 A g(-1)) and excellent power performance. Furthermore, a comprehensive electrochemical performance of symmetrical supercapacitors was obtained: prominent energy density (27.87 Wh.kg(-1) at 489 W kg(-1)) and ideal cyclic stability (97.5% capacity retention after 10,000 cycles at 1 A g(-1)). In addition, hierarchical porous ultra-fine carbon fibers derived from blend polymer and needle coke with high degree of graphitization, which provide a potential optional application for served as binder-free electrodes for electrochemical energy storage devices.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000742853900004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154791]
专题	兰州理工大学
作者单位	1.Bohai Univ, Sch Chem & Mat Engn, Jinzhou 121013, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China 3.Liaoning Engn Technol Ctr Supercapacitor, Jinzhou 121000, Peoples R China;
推荐引用方式 GB/T 7714	Li, Xiangye,Zhao, Lei,He, Tieshi,et al. Highly conductive, hierarchical porous ultra-fine carbon fibers derived from polyacrylonitrile/polymethylmethacrylate/needle coke as binder-free electrodes for high-performance supercapacitors[J]. JOURNAL OF POWER SOURCES,2022,521.
APA	Li, Xiangye.,Zhao, Lei.,He, Tieshi.,Zhang, Minghui.,Wang, Zhenzhen.,...&Weng, Xin.(2022).Highly conductive, hierarchical porous ultra-fine carbon fibers derived from polyacrylonitrile/polymethylmethacrylate/needle coke as binder-free electrodes for high-performance supercapacitors.JOURNAL OF POWER SOURCES,521.
MLA	Li, Xiangye,et al."Highly conductive, hierarchical porous ultra-fine carbon fibers derived from polyacrylonitrile/polymethylmethacrylate/needle coke as binder-free electrodes for high-performance supercapacitors".JOURNAL OF POWER SOURCES 521(2022).