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
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume168Pages:25-31
AbstractA 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.
description.department[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
KeywordCarbon Nanotube Activated Carbon Electrochemical Capacitor
Funding OrganizationMinistry 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]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74659
Collection中国科学院金属研究所
Corresponding Authorfli@imr.ac.cn
Recommended Citation
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.
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