Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors

doi:10.1016/j.jpowsour.2019.227396

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors
	Li, Yubing 1; Zhang, Deyi 1,2; Zhang, Yameng 2; He, Jingjing 1; Wang, Yulin 1; Wang, Kunjie 1; Xu, Yangtao 2; Li, Hongxia 1; Wang, Yi 1
刊名	JOURNAL OF POWER SOURCES
	2020-02
卷号	448
关键词	Microporous carbon Large micropore Biomass Supercapacitors
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2019.227396
英文摘要	Large micropore with a pore size of 1-2 nm can allow high charge storage capability while ensure fast ions transport, which serves to improve the energy density of supercapacitors without sacrificing high power density. Herein, we report a large micropore dominant microporous carbon derived from a biomass waste, flaxseed residue from the edible oil industry, for high-performance supercapacitors. The reported material exhibits a large specific surface area of up to 3230 m(2) g(-1), and more than 70.1% of micropore volume is contributed by large micropores. The specific capacitance of the obtained material reaches up to 369 and 398 F g(-1) in KOH and H2SO4 electrolyte, respectively. Meanwhile, the assembled supercapacitor device based on the obtained material exhibits excellent rate and cycle performance. Over 92.7% of the initial capacitance is retained even under a large current density of 20 A g(-3) and the capacitance retention is more than 98.1% after 10000 times cycle in KOH electrolyte. The energy density of the assembled supercapacitor device reaches 61.2 Wh k g(-1) at a power density of 468.8 W k g(-1), and a high energy density of 43.5 Wh kg(-1) is retained at a large power density of 13.3 kW kg(-1) in ionic liquid EMIMBF4 electrolyte.
资助项目	National Natural Science Foundation of China[51462020][21867015]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000509632300067
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64267]
专题	石油化工学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Zhang, Deyi
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Li, Yubing,Zhang, Deyi,Zhang, Yameng,et al. Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors[J]. JOURNAL OF POWER SOURCES,2020,448.
APA	Li, Yubing.,Zhang, Deyi.,Zhang, Yameng.,He, Jingjing.,Wang, Yulin.,...&Wang, Yi.(2020).Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors.JOURNAL OF POWER SOURCES,448.
MLA	Li, Yubing,et al."Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors".JOURNAL OF POWER SOURCES 448(2020).