Journal of Applied Electrochemistry

, Volume 27, Issue 8, pp 975–981 | Cite as

Metallophthalocyanine catalysed electroreduction of nitrate and nitrite ions in alkaline media

  • N. Chebotareva
  • T. Nyokong


The electrochemical reduction of nitrite and nitrate in alkaline solution has been studied on glassy carbon electrodes modified with phthalocyanine complexes of Mn, Fe, Co, Ni, Cu and Zn (MnPc, FePc, CoPc, NiPc, CuPc and ZnPc, respectively, and Pc(-2) is phthalocyanine dianion). Voltammetry shows that the reduction of nitrite occurs at potentials slightly less negative than for nitrate reduction. The MPc complexes lower the overpotential for the reduction of nitrite and nitrate as follows: CuPc > FePc > NiPc > CoPc > MnPc > ZnPc > glassy carbon electrode. The main product for the reduction of nitrite and nitrate is ammonia, with high yields of ammonia being obtained, depending on the choices of the electrolysis potential and MPc complex.


Ammonia Nitrate Physical Chemistry Nitrite Glassy Carbon Electrode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. [1]
    S. Cattarin, J. Appl. Electrochem. 22 (1992) 1077.Google Scholar
  2. [2]
    N. G. Carpenter and D. Pletcher, Anal. Chim. Acta 317 (1995) 287.CrossRefGoogle Scholar
  3. [3]
    J. H. Zagal, Coord. Chem. Rev. 119 (1992) 89.CrossRefGoogle Scholar
  4. [4]
    H.-L. Li, J. Q. Chambers and D. T. Hobbs, J. Appl. Electrochem. 18 (1988) 454.Google Scholar
  5. [5]
    J. D. Genders, D. Hartsough and D. T. Hobbs, ibid. 26 (1996) 1.Google Scholar
  6. [6]
    C.-H. Yu and Y. O. Su, J. Electroanal. Chem. 368 (1994) 323.CrossRefGoogle Scholar
  7. [7]
    D. Gao, J. Gu, R.-Q. Yu and G.-D. Zheng, Anal. Chim. Acta 302 (1995) 263CrossRefGoogle Scholar
  8. [8]
    S.-H. Cheng and Y. O. Su, Inorg. Chem. 33 (1994) 5847.Google Scholar
  9. [9]
    W. J. Plieth, in ‘Encyclopedia of Electrochemistry of the Elements’ (edited by A. J. Bard), Marcel Dekker (1978), vol VIII, chapt 5.Google Scholar
  10. [10]
    H.-L. Li, D. H. Robertson, J. Q. Chambers and D. T. Hobbs, J. Electrochem. Soc. 135 (1988) 1155.Google Scholar
  11. [11]
    X. Huang and W. Th. Kok, Anal. Chim. Acta 273 (1993) 245.CrossRefGoogle Scholar
  12. [12]
    M. K. Halbert and R. P. Baldwin, Anal. Chem. 57 (1985) 591.Google Scholar
  13. [13]
    T. J. O'Shea and S. M. Lunte, ibid. 66 (1994) 307.Google Scholar
  14. [14]
    V. Iliev, J. Mol. Catal. 85 (1993) L269.CrossRefGoogle Scholar
  15. [15]
    Y. H. Tse, P. Janda and A. B. P. Lever, Anal. Chem. 66 (1994) 384.Google Scholar
  16. [16]
    Q. Y. Peng and T. F. Quarr, Electrochim. Acta 39 (1994) 2629.CrossRefGoogle Scholar
  17. [17]
    C. Coutanceau, P. Crouigneau, J.M. Leger and C. Lamy, J. Electroanal. Chem. 379 (1994) 389.CrossRefGoogle Scholar
  18. [18]
    F. Mizutani, S. Yabuki and S. Iijima, Anal. Chim. Acta 300 (1995) 59.CrossRefGoogle Scholar
  19. [19]
    J.-Z. Li, X.-Y. Pang and R.-Q. Yu, ibid. 297 (1994) 437.CrossRefGoogle Scholar
  20. [20]
    F. Xu, H. Li, S. J. Cross and T. F. Guarr, J. Electroanal. Chem. 368 (1994) 221.CrossRefGoogle Scholar
  21. [21]
    T. Mafatle and T. Nyokong, ibid. 408 (1996) 213.CrossRefGoogle Scholar
  22. [22]
    J. H. Weber and D. H. Busch, Inorg. Chem. 4 (1965) 469.Google Scholar
  23. [23]
    J. Bassett, R. C. Denney, G. H. Jeffery and J. Mendham: Vogel's ‘Textbook of Quantitative Inorganic Analysis’, Longman, New York (1981), p. 731.Google Scholar
  24. [24]
    S. Mho, B. Ortiz, S.-M. Park, D. Ingersoll and N. Doddapaneni, J. Electrochem. Soc. 142 (1995) 1436.Google Scholar
  25. [25]
    A. J. Bard and L. R. Faulkner, ‘Electrochemical Methods: Fundamentals and Applications’, John Wiley & Sons, New York (1980).Google Scholar
  26. [26]
    M. Dieny, O. Contamin and M. Savy, Electrochim. Acta 33 (1988) 121.CrossRefGoogle Scholar

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • N. Chebotareva
    • 1
  • T. Nyokong
    • 1
  1. 1.Department of ChemistryRhodes UniversityGrahamstownSouth Africa

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