Carbon nanotubes/activated carbon hybrid with ultrahigh surface area for electrochemical capacitors

IMR OpenIR

	Carbon nanotubes/activated carbon hybrid with ultrahigh surface area for electrochemical capacitors
	Geng, Xin; Li, Lixiang; Li, Feng; fli@imr.ac.cn
	2015
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	168 页码:25-31
摘要	A hybrid carbon materials with three dimensional network carbon nanotubes in activated carbon was prepared by an in situ activation process. This hybrid carbon material has ultrahigh specific surface area (2879 m(2)/g), pore volume (1.36 cm(3)/g) and developed small mesopore network, which is very favorable for fast electrolyte ion transport in the porous channel. As evidenced by N-2 adsorption, cyclic voltammetry and electrochemical impedance measurements, the hybrid carbon material shows superior capacitive behaviors (exhibiting a high capacitance of 140 F/g, better capacitance retention ratio of 80% even at very high sweep rate of 200 mV/s) and provides much higher power density while still maintaining good energy density. This hybrid carbon material offers a great potential in electrochemical capacitors, particularly for applications where high power output and good high-frequency capacitive performances are required. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[geng, xin ; li, lixiang] univ sci & technol liaoning, sch chem engn, inst mat electrochem, anshan 114015, peoples r china ; [geng, xin ; li, feng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Carbon Nanotube Activated Carbon Electrochemical Capacitor
资助者	Ministry of Science and Technology of China [2011CB932604, 2014CB932402]; National Science Foundation of China [51221264, 51372253, U1401243]; Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06]; Science and Technology Program of Liaoning Education Office [2008330]
收录类别	sci
语种	英语
WOS记录号	WOS:000354055500004
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74659
专题	中国科学院金属研究所
通讯作者	fli@imr.ac.cn
推荐引用方式 GB/T 7714	Geng, Xin,Li, Lixiang,Li, Feng,et al. Carbon nanotubes/activated carbon hybrid with ultrahigh surface area for electrochemical capacitors[J]. ELECTROCHIMICA ACTA,2015,168:25-31.
APA	Geng, Xin,Li, Lixiang,Li, Feng,&fli@imr.ac.cn.(2015).Carbon nanotubes/activated carbon hybrid with ultrahigh surface area for electrochemical capacitors.ELECTROCHIMICA ACTA,168,25-31.
MLA	Geng, Xin,et al."Carbon nanotubes/activated carbon hybrid with ultrahigh surface area for electrochemical capacitors".ELECTROCHIMICA ACTA 168(2015):25-31.