Fabrication of Polyaniline-Coated Carbon Nanotubes Conducting Wire Nanocomposite for NH₃ Gas Sensors at Room Temperature

Abstract:

The nanocomposite of polyaniline (PAni)-coated Carbon nanotubes (CNT) for NH₃ gas sensing application are presented in this paper. The nanorods of PAni/CNT nanocomposite was synthesized by chemical oxidative polymerization of aniline using ammonium persulfate in acidic medium. The aniline was adsorbed in CNT by vacuum absorption method. The morphologies and properties of the nanocomposite have been characterized by SEM, XRD and FTIR respectively. Thin sensor of PAni/CNT nanorods was prepared by spin coating method. Finally, the response of these composite films for NH₃ gas was evaluated by monitoring the change in electrical resistance at room temperature. With compared to the pure PAni and CNT, t_{Subscript text}he nanorods of PAni/CNT composite films show a higher sensitivity.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 661-666
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.661
• Online since: July 2012
• Authors: Kan Kan, Chun Sheng Chen, Guang Xin Zhang, Chao Jiang, Li Li, Ke Ying Shi
• Keywords: Carbon Nanotube (CN), Gas Sensor, Nanocomposite, Polyaniline

References

[1] U. Lange, N.V. Roznyatovskaya1and V.M. Mirsky: Anal. Chim. Acta Vol. 614 (2008), p.1

[2] H. Bai and G. Shi: Sensors (Rev.) Vol. 7 (2007), p.267

[3] S.A. Waghuley, S.M. Yenorkar, S.S. Yawale and S.P. Yawale: Sens. Actuator B Vol. 128 (2008), p.366

DOI: 10.1016/j.snb.2007.06.023

[4] M.K. Ram, O. Yavuz and M. Aldissi: Synth. Met. Vol. 151 (2005), p.77

[5] M.F. Mabrook, C. Pearson and M.C. Petty: Sens. Actuator B Vol. 115 (2006), p.547

[6] M.K. Ram, Yavuz, V. Lahsangah and M. Aldissi: Sens. Actuator B Vol. 106 (2005), p.750

[7] S. Virji, J.X. Huang, R.B. Kaner and B.H. Weiller: Nano Lett. Vol. 4 (2004), p.491

[8] D.N. Debarnot and F.P. Epaillard: Anal. Chim. Acta Vol. 475 (2003), p.1

[9] P. Stamenov, R. Madathil and J.M.D. Coey: Sens. Actuator B Vol. 161 (2012), p.989

[10] M.K. Kumar, A.L.M. Reddy and S. Ramaprabhu: Sens. Actuators B: Chem. Vol. 130 (2008), p.653

[11] D.W. Hatchett and M. Josowicz: Chem. Rev. Vol. 108 (2008), p.746

[12] M. Baibarac and P.G. Romero: J Nanosci Nanotech Vol. 6 (2006), p.1

[13] S. Srivastava, S.S. Sharmaa, S. Agrawal, S. Kumar, M. Singh and Y.K. Vijaya: Synthetic Metals Vol.160 (2010), p.529

[14] D.J. Chen, S. Lei, R.H. Wang, M. Pan and Y.Q. Chen: Chin J Anal Chem Vol. 40 (2012), p.145

[15] P. Lobotka, P. Kunzo, E. Kovacova, I. Vavra, Z. Krizanova, V. Smatko, J. Stejskal, E.N. Konyushenko, M. Omastova, Z. Spitalsky, M. Micusik and I. Krupa: Thin Solid Films Vol. 519 (2011), p.4123

DOI: 10.1016/j.tsf.2011.01.177

[16] P. Saini, R. Jalan and S.K. Dhawan: J. Appl. Polym. Sci. Vol.108 (2008), p.1437

[17] I.A. Tchmutin, A.T. Ponomarenko, E.P. Krinichnaya, G.I. Kozub and O.N. Efimov: Carbon Vol. 41 (2003), p.1391

DOI: 10.1016/s0008-6223(03)00067-8

[18] Z.N. Mo, H.F. Shi, H. Chen, G.P. Niu, Z.G. Zhao and Y.B. Wu: J. App. Poly. Sci. Vol. 112 (2009), p.573