Reduced graphene oxide/nickel cobaltite nanoflake composites for high specific capacitance supercapacitors

	Reduced graphene oxide/nickel cobaltite nanoflake composites for high specific capacitance supercapacitors
	Wang L ; Wang XH ; Xiao XP ; Xu FG ; Sun YJ ; Li Z
刊名	electrochimica acta
	2013
卷号	111 页码:937-945
关键词	EXFOLIATED GRAPHITE OXIDE NICKEL COBALTITE ELECTROCHEMICAL CAPACITORS NICO2O4 SPINEL ELECTRODE MATERIALS CHEMICAL-SYNTHESIS ENERGY-STORAGE NANOSHEETS FABRICATION STABILITY
ISSN号	0013-4686
通讯作者	li z
中文摘要	reduced graphene oxide (rgo)/nickel cobaltite (nico2o4) nanoflake composites were prepared by combining in situ assembling and subsequent thermal treatment. the rgo/nico2o4 composites were characterized by scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, x-ray powder diffraction, raman spectroscopy, x-ray photoelectron spectroscopy, nitrogen adsorption/desorption isotherms and thermogravimetric analysis. cyclic voltammetry and chronopotentiometry measurements were performed to investigate the electrochemical properties of the composites. superior performances were achieved with high specific capacitance of 1693 f g(-1) at 1 a g(-1), good rate capability (67.6% capacity retention at 16 a g(-1)) and long-term cyclability (only 9.2% loss after 2000 cycles). the binary redox couples of ni2+/ni3+ and co2+/co3+, ultrathin nanoflake structure, together with the high electrical conductivity of rgo to the outside current collectors are responsible for the excellent electrochemical performances of the rgo/nico2o4 composite, thus suggesting its potential application as an effective electrode material for supercapacitors. (c) 2013 elsevier ltd. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000329531100123
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49447]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang L,Wang XH,Xiao XP,et al. Reduced graphene oxide/nickel cobaltite nanoflake composites for high specific capacitance supercapacitors[J]. electrochimica acta,2013,111:937-945.
APA	Wang L,Wang XH,Xiao XP,Xu FG,Sun YJ,&Li Z.(2013).Reduced graphene oxide/nickel cobaltite nanoflake composites for high specific capacitance supercapacitors.electrochimica acta,111,937-945.
MLA	Wang L,et al."Reduced graphene oxide/nickel cobaltite nanoflake composites for high specific capacitance supercapacitors".electrochimica acta 111(2013):937-945.