Design, hydrothermal synthesis and electrochemical properties of porous birnessite-type manganese dioxide nanosheets on graphene as a hybrid material for supercapacitors

doi:10.1016/j.jpowsour.2013.05.062

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	Design, hydrothermal synthesis and electrochemical properties of porous birnessite-type manganese dioxide nanosheets on graphene as a hybrid material for supercapacitors
	Liu, Ying 1; Yan, De 1; Zhuo, Renfu 1; Li, Shuankui 1; Wu, Zhiguo 1; Wang, Jun 1; Ren, Pingyuan 1; Yan, Pengxun 1,2; Geng, Zhongrong 3
刊名	JOURNAL OF POWER SOURCES
	2013-11-15
卷号	242 页码:78-85
关键词	Birnessite-type Manganese Dioxide Graphene Hydrothermal Method Supercapacitors
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2013.05.062
英文摘要	MnO2-graphene hybrid with a unique structure of porous birnessite-type manganese dioxide (MnO2) nanosheets on graphene has been designed and synthesized by a simple hydrothermal method. The formation mechanism of the hybrid is discussed based on a series of time-dependent experiments. Electrochemical measurements reveal that the MnO2-graphene electrode exhibits much higher specific capacitance (315 F g(-1) at a current density of 0.2 A g(-1)) and better rate capability (even 193 F g(-1) at 6 A g(-1)) compared with both the graphene and MnO2 electrodes. Moreover, the capacitance of MnO2-graphene electrode is still 87% retained after 2000 cycles at a charging rate of 3 A g(-1). The superior capacitive performance of the hybrid is attributed to its unique structure, which provides good electronic conductivity, fast electron and ion transport, and high utilization of MnO2. (C) 2013 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000323628100012
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54915]
专题	中国科学院化学研究所
通讯作者	Yan, De
作者单位	1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Chem & Phys, Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 3.Lanzhou Jiaotong Univ, Sch Mechatron Engn, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ying,Yan, De,Zhuo, Renfu,et al. Design, hydrothermal synthesis and electrochemical properties of porous birnessite-type manganese dioxide nanosheets on graphene as a hybrid material for supercapacitors[J]. JOURNAL OF POWER SOURCES,2013,242:78-85.
APA	Liu, Ying.,Yan, De.,Zhuo, Renfu.,Li, Shuankui.,Wu, Zhiguo.,...&Geng, Zhongrong.(2013).Design, hydrothermal synthesis and electrochemical properties of porous birnessite-type manganese dioxide nanosheets on graphene as a hybrid material for supercapacitors.JOURNAL OF POWER SOURCES,242,78-85.
MLA	Liu, Ying,et al."Design, hydrothermal synthesis and electrochemical properties of porous birnessite-type manganese dioxide nanosheets on graphene as a hybrid material for supercapacitors".JOURNAL OF POWER SOURCES 242(2013):78-85.