Template Synthesis of Activated Carbon for Supercapacitor

Abstract:

Activated carbon was fabricated by using phenolic resin as carbon source, tween-80 as organic template, KOH as activator. The samples were analyzed by N2 adsorption, scanning electron microscopy (SEM). Cyclic voltammetry and galvanostatic charge-discharge were used to characterize the electrochemical performance of the samples. The results showed that specific surface area of the prepared sample was 1935.99 m2/g, pore size was mainly in the range of 1.0～4.0 nm and showed typical capacitance characteristics in cyclic voltammetry. At a current density of 15mA/cm2, a specific capacitance of 246.18F/g was achieved and the resistance was 1.11Ω. Supercapacitors based on the sample had low ESR and excellent power property.

• Periodical: Materials Science Forum (Volumes 663-665)
• Pages: 568-571
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.663-665.568
• Online since: November 2010
• Authors: Ren Qing Wang, Qin Fang, Mei Gen Deng
• Keywords: Activated Carbon (AC), Organic Template, Phenolic Resin, Super-Capacitor (SC)

References

[1] O. Barbieri, M. Hahn and A. Herzog et al.: Carbon Vol. 43 (2005), p.1303.

[2] E. Frackowiak and F. Béguin: Carbon Vol. 39 (2001), p.937.

[3] J. Gamby, P.L. Taberna, P. Simon et al.: J Power Sources Vol. 101(2001), p.109.

[4] J. Ozaki: Carbon Vol. 35 (1997), p.1031.

[5] L. Zhang, H, -B. Liu, B. -G. Li et al.: Carbon Vol. 121 (2005), p.7.

[6] B. E. Conway: Kluwer Academic Plenue Publishers, New York, (1999).

[7] L. Zhang and H.B. Liu: Transactions of nonferrous Metals Society of China, Vol. 16 (2006), p.164.