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Influence of Chemical Modification of Activated Carbon Surface on Performance of Supercapacitors

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Abstract:

In order to improve capacitance in supercapacitors application, activated carbon (AC) was modified by nitric acid oxidizing treatment. Oxygen-containing functional groups (OCFG) were detected by using FTIR techniques. Cyclic voltammetry and constant current charge-discharge were used to characterize the electrochemical performance of the samples in 6 mol/L KOH solution. FTIR studies showed that chemical modification promoted the formation of OCFG on the surface of AC. It was found that the contribution rate of pseudo-capacitance to the total capacitance increased significantly with the extent of oxidization treatment. When oxidized by 50% HNO3, AC achieved a specific capacitance of 197.26F/g at a current density of 20mA/cm2 corresponding to an increasing rate up to 20%.

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Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

427-429

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.427

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Online since:

January 2012

Authors:

Mei Gen Deng, Ren Qing Wang

Keywords:

Activated Carbon (AC), Chemical Modification, Super-Capacitor (SC)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] P. Simon, Y. Gogotsi. Nat. Mater, Vol. 7 (2008) , pp.845-54.

Google Scholar

[2] A.G. Pandolfo, A.F. Hollenkamp. J Power Sources, Vol. 157 (2006) , p.11–27.

Google Scholar

[3] J. Chmiola, G. Yushin, Y. Gogotsi, C. Portet, P. Simon, P.L. Taberna. Science, Vol. 31 (2006) , pp.1760-3.

DOI: 10.1126/science.1132195

Google Scholar

[4] J. Huang, B.G. Sumpter, V. Meunier. Angew. Chem. Int. Ed, Vol. 47 (2008) , pp.520-524.

Google Scholar

[5] C. Largeot,C. Portet,J. Chmiola, P.L. Taberna, Y. Gogotsi, P. Simon.J. Am . Chem . Soc, Vol. 130 (2008) , pp.2730-2731.

DOI: 10.1021/ja7106178

Google Scholar

[6] E. Raymundo-Piero,K. Kierzek,J. Machnikowski,F. Bèguin. Carbon, Vol. 44 (2006) , p.2498–2507.

Google Scholar

[7] G. Salitra,A. Soffer,L. Eliad,Y. Cohen,D. Aurbach.J. Electrochem. Soc, Vol. 147 (2000) , pp.2486-2493.

DOI: 10.1149/1.1393557

Google Scholar

[8] J. Chmiola,R. Dash,G. Yushin,Y. Gogotsi.J. Power. Sources, Vol. 158 (2006) , pp.765-772.

DOI: 10.1016/j.jpowsour.2005.09.008

Google Scholar

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