Self-assembled 3D hierarchical nanostructure of reduced GO nanosheets intercalated with CDs for high-rate supercapacitor electrodes

doi:10.1016/j.jallcom.2017.08.229

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	Self-assembled 3D hierarchical nanostructure of reduced GO nanosheets intercalated with CDs for high-rate supercapacitor electrodes
	Wang, Meiling 1; Han, Fangming 1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2017-12-15
卷号	727 期号:无页码:991-997
关键词	Graphene Nanosheets Carbon Dots Supercapacitor
DOI	10.1016/j.jallcom.2017.08.229
文献子类	Article
英文摘要	A simple hydrothermal method for the preparation of 3D net-work hierarchical nanostructures consisting of carbon dots (CDs) intercalated between reduced graphene oxide (GO) nanosheets (denoted as CDs@rGONS) is demonstrated in this work. The incorporation of CDs as nano-spacers has effectively preventing aggregations of the rGONS, and at the same time greatly improved the reduction efficiency of the GO, both of which obviously enhance the electrochemical performance of the hierarchical nanostructures. Simple supercapacitors were assembled using the samples with different CDs/GO mass ratios, and it was proved that for the sample obtained with a CDs/GO mass ratio of 0.6 (denoted as CDs@rGONS(0.6)), a high specific capacitance of 239 F/g was obtained according to the CV curves. Moreover, a high energy density of 24 Wh/kg at 1 A/g and a high power density of 15.8 kW/kg at 10 A/g were obtained respectively, both of which are much higher than those without the presence of CDs. The good cycle stability (92.1% capacitance retention after 11500 cycles) of the sample was studied too. These excellent electrochemical performances proved their potential energy storage applications. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	SOLID-STATE SUPERCAPACITORS ; CARBON SPHERES ; GRAPHENE ; PERFORMANCE ; NANOPARTICLES ; FILMS ; FLUORESCENCE ; HYDROGELS ; NITROGEN ; DOTS
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000412712900117
资助机构	National Natural Science Foundation of China(21307138 ; National Natural Science Foundation of China(21307138 ; National Natural Science Foundation of China(21307138 ; National Natural Science Foundation of China(21307138 ; 51372247) ; 51372247) ; 51372247) ; 51372247) ; National Natural Science Foundation of China(21307138 ; National Natural Science Foundation of China(21307138 ; National Natural Science Foundation of China(21307138 ; National Natural Science Foundation of China(21307138 ; 51372247) ; 51372247) ; 51372247) ; 51372247)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/33796]
专题	合肥物质科学研究院_中科院固体物理研究所
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, CAS Ctr Excellence Nanosci, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wang, Meiling,Han, Fangming. Self-assembled 3D hierarchical nanostructure of reduced GO nanosheets intercalated with CDs for high-rate supercapacitor electrodes[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,727(无):991-997.
APA	Wang, Meiling,&Han, Fangming.(2017).Self-assembled 3D hierarchical nanostructure of reduced GO nanosheets intercalated with CDs for high-rate supercapacitor electrodes.JOURNAL OF ALLOYS AND COMPOUNDS,727(无),991-997.
MLA	Wang, Meiling,et al."Self-assembled 3D hierarchical nanostructure of reduced GO nanosheets intercalated with CDs for high-rate supercapacitor electrodes".JOURNAL OF ALLOYS AND COMPOUNDS 727.无(2017):991-997.