Ag–Loaded Polypyrrole/Carbon Nanotube: One-Step In Situ Polymerization and Improved Capacitance

Abstract:

Ternary composites of Ag–loaded polypyrrole/carbon nanotube (Ag–PPy/CNT) are prepared using a one–step in situ polymerization. Ag nanoparticles are uniformly decorated on the core–shell PPy/CNT networks. This approach provides a simple, easily accessible strategy for preparing three–dimensional noble metal–conductive polymer–carbon nanotube composites. Electrochemical properties of Ag–loaded composites are evaluated to understand the effect of Ag on the structure and kinetic process of the composite. Results indicate that the composites have good electrochemical reversibility and high specific capacitance. The specific capacitiance of Ag–PPy/CNT composites are enhanced greatly from 206.7 F g–1 of PPy/CNT composites to 528.6 F g–1 at 3 mA cm–2. This demonstrates that combining nano–sized Ag with supercapacitor materials is very effective in promoting electrochemical performance of materials.

• Periodical: Advanced Materials Research (Volume 531)
• Pages: 35-38
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.531.35
• Online since: June 2012
• Authors: Hong Yu Mi, You Long Xu
• Keywords: Ag-Loaded Polypyrrole/Carbon Nanotube, In Situ Polymerization, Specific Capacitance

References

[1] Dj.M. Maric, P.F. Meier and S.K. Estreicher: Mater. Sci. Forum Vol. 83-87 (1992), p.119

[2] V.I. Chegel, O.A. Raitman, O. Llioubashevski, Y. Shirshov, E. Katz and I. Willner: Adv. Mater. Vol. 14 (2002), p.1549

[3] A. Rahy, M. Sakrout, S. Manohar, S.J. Cho, J. Feraris and D.J. Yang: Chem. Mater. Vol. 20 (2008), p.4808

[4] C.C. Hu and J.Y. Lin: Electrochim. Acta Vol. 47 (2002), p.4055

[5] V. Georgakilas, P. Dallas, D. Niarchos, N. Boukos and C. Trapalis: Synth. Met. Vol. 159 (2009), p.632

DOI: 10.1016/j.synthmet.2008.12.007

[6] H.F. An, Y. Wang, X.Y. Wang, L.P. Zheng, X.Y. Wang, L.H. Yi and X.Y. Zhang: J. Power Sources Vol. 195 (2010), p.6964

[7] P. Jiménez, P. Castell, R. Sainz, A. Ansón, M.T. Martínez, A.M. Benito and W.K. Maser: J. Phys. Chem. B Vol. 114 (2010), p.1579

DOI: 10.1021/jp909093e

[8] Y.P. Fang, J.W. Liu, D.J. Yu, J.P. Wicksted, K. Kalkan, C.O. Topal, B.N. Flanders, J. Wu and J. Li: J. Power Sources Vol. 195 (2010), p.674

DOI: 10.1016/j.jpowsour.2009.07.033

[9] R.V. Salvatierra, M.M. Oliveira and A.J.G. Zarbin: Chem. Mater. Vol. 22 (2010), p.5222

[10] A. Drury, S. Chaure, M. Kröll, V. NIcolosi, N. Chaure and W.J. Blau: Chem. Mater. Vol. 19 (2007), p.4252

DOI: 10.1021/cm071102s

[11] Y. Gao, D.C. Shan, F. Cao, J. Gong, X. Li, H.Y. Ma, Z.M. Su and L.Y. Qu: J. Phys. Chem. C Vol. 113 (2009), p.15175

[12] P.R. Sajanlal, T.S. Sreeprasad, A. Sreekumaran Nair and T. Pradeep: Langmuir Vol. 24 (2008), p.4607

[13] I. Šděnková, M. Trchová, J. Stejskal and J. Prokeš: ACS Appl. Mater. Interfaces Vol. 1 (2009), p. (1906)