Asymmetric supercapacitors based on high capacitance Ni6MnO8 and graphene

doi:10.1016/j.cclet.2019.01.026

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	Asymmetric supercapacitors based on high capacitance Ni6MnO8 and graphene
	Zeng, Mingyang 1; Zhang, Li 1; Wu, Dandan 1; Ma, Jun 1; Zhang, Cao 1; Li, Shujuan 2
刊名	CHINESE CHEMICAL LETTERS
	2019-06
卷号	30 期号:6 页码:1329-1334
关键词	Ni6MnO8 Electrode Asymmetric supercapacitors Power density Energy density
ISSN号	1001-8417
DOI	10.1016/j.cclet.2019.01.026
英文摘要	Supercapacitors with high energy density and high power density have attracted numerous attentions. Here, we successfully synthesized Ni6MnO8 material by a fast, facile, and cost-effective method, which the area specific capacitance was found to be as high as 1113 mF/cm(2) at a current density of 1 mA/cm(2). Further, the asymmetric supercapacitor was assembled by using Ni6MnO8 as the positive electrode and graphene as the negative electrode with an operation potential from 0 to 1.4V. It exhibited an area specific capacitance of 69.1m F/cm(2) at 0.5 mA/cm(2) and stable cycling performance which presented about 80% capacitance retention after 5000 cycles at 5 mA/cm(2). The energy density of graphene//Ni6MnO8 supercapacitors was calculated to be 18.81 mWh/cm(2) at a power density of 350.1 mW/cm(2) and still remained 5.8 mWh/cm(2) at a power density of 6990.7 mW/cm(2), meaning that the asymmetric supercapacitor combine excellent power density and energy density. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	Natural Science Foundation of Gansu Province[1506 RJZA095]
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000474501100042
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31831]
专题	理学院
通讯作者	Zhang, Li; Li, Shujuan
作者单位	1.Lanzhou Univ Technol, Sch Sci, Dept Phys, Lanzhou 730050, Gansu, Peoples R China 2.Free Univ Berlin, Inst Math, D-14195 Berlin, Germany
推荐引用方式 GB/T 7714	Zeng, Mingyang,Zhang, Li,Wu, Dandan,et al. Asymmetric supercapacitors based on high capacitance Ni6MnO8 and graphene[J]. CHINESE CHEMICAL LETTERS,2019,30(6):1329-1334.
APA	Zeng, Mingyang,Zhang, Li,Wu, Dandan,Ma, Jun,Zhang, Cao,&Li, Shujuan.(2019).Asymmetric supercapacitors based on high capacitance Ni6MnO8 and graphene.CHINESE CHEMICAL LETTERS,30(6),1329-1334.
MLA	Zeng, Mingyang,et al."Asymmetric supercapacitors based on high capacitance Ni6MnO8 and graphene".CHINESE CHEMICAL LETTERS 30.6(2019):1329-1334.