Journal of Analytical Chemistry

, Volume 73, Issue 4, pp 383–389 | Cite as

Single-Walled Carbon Nanotubes Functionalized with N-(6-aminohexyl) Carboxamide as Ionophore for Sensing Silver Ions

  • K. Mehdizadeh
  • M. GiahiEmail author
  • H. Aghaie


In this work; we constructed a silver ion-selective electrode based on N-(6-aminohexyl) carboxamide functionalized single-walled carbon nanotubes (NAHAFSWCN) as an ionophore. The selectivity constant of a number of cations was measured using silver ion selective electrode. Optimal pH was between 3 and 6 and the upper and lower detection limits of the designed electrode were 1.2 × 10–2 and 8 × 10–7 M. The electrode showed a Nernstian response over a silver ion concentration range of 1 × 10–6 to 1 × 10–2 M with a slope of 59.1 ± 0.5 mV/decade. The response time of the electrode was less than 18 s and its effective lifetime was 3 months. The isothermal temperature coefficient of the electrode dE°/dT was determined as 0.00011 V/grad. Thermodynamic functions such as ΔS°, ΔH° and ΔG° were obtained by calculating the thermal coefficient of the electrode.


silver ion-selective thermal coefficient N-(6-aminohexyl) carboxamide carbon nanotubes sensor 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Iijima, S., Nature, 1991, vol. 354, p.56.CrossRefGoogle Scholar
  2. 2.
    Iijima, S. and Ichihashi, T., Nature, 1993, vol. 363, p.603.CrossRefGoogle Scholar
  3. 3.
    Yung, K.P., Wei, J., and Tay, B.K., Diamond Relat. Mater., 2009, vol. 18, p. 1109.CrossRefGoogle Scholar
  4. 4.
    Futaba, D.N., Goto, J., Yasuda, S., Yamada, T., Yumura, M., and Hata, K., J. Am. Chem. Soc., 2009, vol. 131, p. 15992.CrossRefGoogle Scholar
  5. 5.
    Pastine, S.J., Okawa, D., Kessler, B., Rolandi, M., Llorente, M., Zettl, A., and Frechet, M.J.A., J. Am. Chem. Soc., 2008, vol. 130, p. 4238.CrossRefGoogle Scholar
  6. 6.
    Qian, D., Dickey, E.C., Andrews, R., and Rantell, T., Appl. Phys. Lett., 2000, vol. 76, p. 2868.CrossRefGoogle Scholar
  7. 7.
    Mickelson, E.T., Chiang, I.W., Zimmerman, J.L., Boul, P.J., Lozano, J., Liu, J., Smalley, R.E., Hauge, R.H., and Margrave, J.L., J. Phys. Chem., 1999, vol. 103, p. 4318.CrossRefGoogle Scholar
  8. 8.
    Aghaie, H., Giahi, M., Monajjemi, M., Arvand, M., Nafissi, G.H., and Aghaie, M., Sens. Actuators, B, 2005, vol. 107, p.756.CrossRefGoogle Scholar
  9. 9.
    Giahi, M., Arvand, M., Mirzaei, M., and Bagherinia, M.A., Anal. Lett., 2009, vol. 42, p.870.CrossRefGoogle Scholar
  10. 10.
    Foldvari, M. and Bagonluri, M., Nanomed. Nanotechnol. Biol. Med., 2008, vol. 4, p.173.CrossRefGoogle Scholar
  11. 11.
    Zhao, Q., Gan, Z.H., and Zhuang, Q.K., Electroanalysis, 2002, vol. 14, p. 1609.CrossRefGoogle Scholar
  12. 12.
    Bernholc, J., Brenner, D., Buongiomo Nardelli, M., Meunier, V., and Roland, C., Ann. Rev. Mater. Res., 2002, vol. 32, p.347.CrossRefGoogle Scholar
  13. 13.
    Britto, P.J., Santhanam, K.S.V., and Ajayan, P.M., Biol. Chem., 1996, vol. 41, p.121.Google Scholar
  14. 14.
    Ives, D.J.G. and Janz, G.J., Reference Electrodes: Theory and Practice, New York: Academic, 1961.Google Scholar
  15. 15.
    Shamsipur, M., Poursaberi, T., Karimi, A.R., Hosseini, M., Momeni, A., Alizade, N., Yousefi, M., and Ganjali, M.R., Anal. Chim. Acta., 2004, vol. 501, p.55.CrossRefGoogle Scholar
  16. 16.
    Suzuki, K., Amada, H., Sato, K., Watnabe, K., Hisamoto, H., Tobe, Y., and Kobiro, K., Anal. Chem., 1993, vol. 65, p. 3404.CrossRefGoogle Scholar
  17. 17.
    Chan, W., Albert, H., Yiu, W.M.L., and Jain, S.L., Microchem. J., 2002, vol. 72, p.201.CrossRefGoogle Scholar
  18. 18.
    Gadzepko, V.P. and Christian, G.D., Anal. Chim. Acta, 1984, vol. 164, p.279.CrossRefGoogle Scholar
  19. 19.
    Antropov, L.I., Theoretical Electrochemistry, Moscow: Mir, 1972.Google Scholar
  20. 20.
    Ngeontae, W., Janrungroatsakul, W., Morakot, N., Aeungmaitrepirom, W., and Tuntulani, T., Sens. Actuators, B, 2008, vol. 134, p.377.CrossRefGoogle Scholar
  21. 21.
    Amini, M.K., Rafi, A., and Mohammadpoor-Baltork, I., Anal. Lett., 2002, vol. 35, p. 1795.CrossRefGoogle Scholar
  22. 22.
    Ardkani, M., Dehghani, H., Jalayer, M., and Zare, H.R., Anal. Sci., 2004, vol. 20, p. 1667.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Department of Chemistry, Science and Research BranchIslamic Azad UniversityTehranIran
  2. 2.Department of Chemistry, Lahijan BranchIslamic Azad UniversityLahijanIran

Personalised recommendations