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Abstract

The carbon nanotube arrays(CNTA) were grown directly on the substrates of Ta and stainless steel by chemical vapor deposition.The button-like supercapacitors were fabricated based the CNTA electrodes.The electrochemical performance of CNTA based supercapacitors presentsed high working voltage(3.5 V),long cycle life,and good rate capability.The power and energy densities are were 928 kW·kg-1and 19 Wh·kg-1,respectively(based on the mass of CNTA).

Keywords

supercapacitors, carbon nanotube array, electrochemical performance

Publication Date

2008-05-28

Online Available Date

2008-05-28

Revised Date

2008-05-28

Received Date

2008-05-28

References

[1]Conway B E.Electrochemical supercapacitors:scientificfundamentals and technological applications[M].NewYork:Kluwer/Plenum,1999.
[2]Baughman R,Zakhidov A,de Heer W.Carbon nano-tubes———the route toward applications[J].Science,2002,297:787-792.
[3]An K,Kim W,Park Y,et al.Electrochemical proper-ties of high-power supercapacitors using single-walledcarbon nanotube electrodes[J].Advanced FunctionalMaterials,2001,11:387-392.
[4]Xu B,Wu F,Chen R,et al.Room temperature moltensalt as electrolyte for carbonnanotube-based electricdouble layer capacitors[J].Journal of Power Sources,2006,158:773-778.
[5]Futaba D N,Hata K,Yamada T,et al.Shape-engi-neerable and highly densely packed single-walled carbonnanotubes and their application as super-capacitor elec-trodes[J].Nature Materials,2006,5:987-794.
[6]Zhang H,Cao G P,Yang Y S.Using a cut-paste meth-od to prepare a carbon nanotube fur electrode[J].Nanotechnology,2007,18:195607-1-4.
[7]Zhang H,Cao G P,Yang Y S.Electrochemical proper-ties of ultra-long,aligned,carbon nanotube array elec-trode in organic electrolyte[J].Journal of PowerSources,2007,172:476-480.
[8]Honda Y,Haramoto T,Takeshige M,et al.AlignedMWCNTsheet electrodes prepared by transfer methodol-ogy providing high-power capacitor performance[J].Electrochemical Solid-State Letters,2007,10:A106-A110.
[9]Zilli D,Bonelli P,Cukierman A.Effect of alignment onadsorption characteristics of self-oriented multi-walledcarbon nanotube arrays[J].Nanotechnology,2006,17:5136-5141.
[10]Zhang H,Cao G P,Yang Y S,et al.A comparisonbetween electrochemical properties of aligned carbonnanotube array and entangled carbon nanotube elec-trodes[J].Journal of the Electrochemical Society,2008,155:K19-K22.
[11]Peng A P(彭爱平),Zhang H(张浩),Wang Z Y(王志永),et al.Growth of aligned carbon nanotubearrays by pyrolysis of iron phthalocyanine and ethylene[J].Chemical Journal of Chinese Universities(inChinese),2007,28(12):2229-2233.
[12]Emmenegger C,Mauron P,Zuttel A,et al.Carbonnanotube synthesized on metallic substrates[J].Ap-plied Surface Science,2000,162-163:452-456.
[13]Shinya M,Ishimoto S,Ogihara N,et al.A detailedinterfacial electrode process at EDLC anode and cath-ode under different polarization[C]//In:Proceedingsof the Second Asian Conference on ElectrochemicalPower Sources.Shanghai:2007.

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