Activated Carbon Modified by Titanate Coupling Agent for Supercapacitor



A novel and simple strategy by introducing a titanate coupling agent into the electrode to improve the supercapacitor performance has been developed in this study. The surface modification of the activated carbon material are conducted under neutral conditions. The improved electrodes are characterized by mechanical tests and electrochemical measurements. The obtained results reveal that the treated activated carbon electrode retains good mechanical properties with decreased bonder content. The electrode prepared using activated carbon treated with the Titanate coupling agent and a bonder mass content of 8.0 % shows the best electrochemical performance. The specific capacitance reaches 376.2 F•g-1, whereas the internal resistance is 0.91 Ω.




Weiguo Pan, Jianxing Ren and Yongguang Li




K. D. Cai and W. F. Mu, "Activated Carbon Modified by Titanate Coupling Agent for Supercapacitor", Advanced Materials Research, Vols. 347-353, pp. 3649-3652, 2012


October 2011




[1] H.C. Wu, Y.P. Lin, E. Lee, W.T. Lin, J.K. Hu, H.C. Chen and N.L. Wu, Mater. Chem. Phys. Vol. 117 (2009), P. 294.

[2] J. Chmiola, C. Largeot, P. L. Taberna, P. Simon and Y. Gogotsi, Science Vol. 328 (2010), P. 480.

[3] L.B. Kong, M. Liu, J.W. Lang, Y C. Luo and L. Kang, J. Electrochem. Soc. Vol. 155 (2009), P. 1003.

[4] M. Arulepp, L. Permann and J. Leis, J. Power Sources. Vol. 320 (2004), P. 133.

[5] E. Frackowiak, Phys. Chem. Chem. Phys. Vol. 9 (2007), P. 1774.

[6] A. K. Mishra and S. Ramaprabhu, J. Phys. Chem. C. Vol. 114 (2010), P. 2583.

[7] C. Zou, D.C. Wu and M.Z. Li, J. Mater. Chem. Vol. 20 (2010), P. 731.

[8] T. Stimpfling, F. Leroux, Chem. Mater. Vol. 22 (2010), P. 974.

[9] O. Bohlen, J. Kowal and D.U. Sauer, J. Power Sources. Vol. 172 (2007), P. 468.

[10] S. Shiraishi, K. Sunaga and T. Suganuma, Carbon Vol. 48 (2010), P. 1323.