Growth of cobalt–nickel layered double hydroxide on nitrogen-doped graphene by simple co-precipitation method for supercapacitor electrodes

doi:10.1007/s10854-018-9817-2

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Growth of cobalt–nickel layered double hydroxide on nitrogen-doped graphene by simple co-precipitation method for supercapacitor electrodes
	Xu, Hui 1; Wu, Junxia 1,2; Liu, Jian 1; Chen, Yong 1; Fan, Xin 1
刊名	Journal of Materials Science: Materials in Electronics
	2018-10-01
卷号	29 期号:20 页码:17234-17244
关键词	Cobalt Coprecipitation Current density Doping (additives) Electrochemical electrodes High resolution transmission electron microscopy Nickel compounds Nitrogen Supercapacitor Asymmetric supercapacitor Electrochemical performance High specific capacitances Layered double hydroxides Negative electrode material Nitrogen doped graphene Supercapacitor electrodes Transmission electron microscopy images
ISSN号	09574522
DOI	10.1007/s10854-018-9817-2
英文摘要	Nitrogen-doped graphene/Co–Ni layered double hydroxide (RGN/Co–Ni LDH) is synthesized by a facile co-precipitation method. Transmission electron microscopy images indicated that the formation of Co–Ni(OH)2 nanoflakes with the good dispersion anchored on the surfaces of the nitrogen-doped graphene sheets. The nitrogen-doped graphene composites delivered the enhanced electrochemical performances compared to the pure Co–Ni LDH due to the improved electronic conductivity and its hierarchical layer structures. The high specific capacitance of 2092 F g−1 at current density of 5 mA cm−2 and the rate retention of 86.5% at current density of 5–50 mA cm−2 are achieved by RGN/Co–Ni LDH, higher than that of pure Co–Ni LDH (1479 F g−1 and 76.5%). Moreover, the two-electrode asymmetric supercapacitor, with the RGN/Co–Ni LDH composites as the positive electrode and active carbon as the negative electrode material, exhibits energy density of 49.4 Wh kg−1 and power density of 101.97 W kg−1 at the current density of 5 mA cm−2, indicating the composite has better capacitive behavior. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	Springer New York LLC
WOS记录号	WOS:000445428900017
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114498]
专题	石油化工学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Baiyin Institute of Mining and Metallurgy, Baiyin; 730900, China
推荐引用方式 GB/T 7714	Xu, Hui,Wu, Junxia,Liu, Jian,et al. Growth of cobalt–nickel layered double hydroxide on nitrogen-doped graphene by simple co-precipitation method for supercapacitor electrodes[J]. Journal of Materials Science: Materials in Electronics,2018,29(20):17234-17244.
APA	Xu, Hui,Wu, Junxia,Liu, Jian,Chen, Yong,&Fan, Xin.(2018).Growth of cobalt–nickel layered double hydroxide on nitrogen-doped graphene by simple co-precipitation method for supercapacitor electrodes.Journal of Materials Science: Materials in Electronics,29(20),17234-17244.
MLA	Xu, Hui,et al."Growth of cobalt–nickel layered double hydroxide on nitrogen-doped graphene by simple co-precipitation method for supercapacitor electrodes".Journal of Materials Science: Materials in Electronics 29.20(2018):17234-17244.