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Effect of Pyrophosphate Ions on the Mechanism of Discharge–Ionization of Copper in Acid Sulfate Solutions

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Abstract

The acceleration of the electrodeposition and anodic dissolution of copper in acid sulfate solutions, caused by sodium pyrophosphate, is found to be due to a chemical heterogeneous stage, which involves an adsorbed pyrophosphate ion (probably, H2P2O7 2–). The assumption about the presence of a surface complex on the surface of copper is substantiated. As follows from adsorption isotherms, obtained for strongly acid (to 2 M H2SO4) solutions from anodic Tafel plots, the effect of the acid concentration on the rate of the discharge–ionization of copper is caused by its effect on the surface coverage by the adsorbate. Measurements of the quasi-equilibrium potential of the freshly renewed surface of copper confirm the assumption about the inhibiting of the surface diffusion of adsorbed atoms by adsorbed pyrophosphate.

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References

  1. Lezhava, T.I., Meladze, K.G., and Tsanava, B.V., Abstracts of Papers, IV Simpozium “Dvoinoi sloi i adsorbtsiya na tverdykh elektrodakh” (IV Symp. on Double Layer and Adsorption at Solid Electrodes), Tartu: Tartus. Gos. Univ., 1975, p. 143.

    Google Scholar 

  2. Tsanava, B.V., Lezhava, T.I., Kurbatova, L.A., and Mamontov, E.A., Soobshch. Akad. Nauk Gruz. SSR, 1981, vol. 103, p. 74.

    Google Scholar 

  3. Lezhava, T.I. and Tsanava, B.V., Abstracts of Papers, VI Simpozium “Dvoinoi sloi i adsorbtsiya na tverdykh elektrodakh” (VI Symp. on Double Layer and Adsorption at Solid Electrodes), Tartu: Tartus. Gos. Univ., 1981, p. 220.

    Google Scholar 

  4. Lezhava, T.I., Abstracts of Papers, VII Vsesoyuznoe soveshchanie po polyarografii (VII All-Union Meet. on Polarography), Moscow: Nauka, 1978, p. 95.

    Google Scholar 

  5. Lezhava, T.I., Tsanava, B.V., Khennig, Kh., and Batrakov, V.V., Elektrokhim., 1978, vol. 14, p. 1820.

    Google Scholar 

  6. Vargalyuk, V.D., Pikel'nyi, A.Ya., and Loshkarev, Yu.M., Elektrokhim., 1981, vol. 17, p. 447.

    Google Scholar 

  7. Orekhova, V.V., Klyuchkov, N.P., Artemenko, V.M., and Andreev, G.K., Elektrokhim., 1986, vol. 22, p. 692.

    Google Scholar 

  8. Lezhava, T.I., Tsanava, B.V., and Kikabidze, M.P., Abstracts of Papers, VII Simpozium “Dvoinoi sloi i adsorbtsiya na tverdykh elektrodakh” (VII Symp. on Double Layer and Adsorption at Solid Electrodes), Tartu: Tartus. Gos. Univ., 1985, p. 190.

    Google Scholar 

  9. Yuzelyunas, E.E., Kamuntavichene, I.Yu., Katkute, V.A., and Slizhis, R.P., Tr. Akad. Nauk Lit. SSR, Ser. B, 1986, vol. 2(153), p. 26.

    Google Scholar 

  10. Lezhava, T.I. and Tsanava, B.V., Elektrokhim., 1981, vol. 17, p. 907.

    Google Scholar 

  11. Lezhava, T.I. and Tsanava, B.V., Soobshch. Akad. Nauk Gruz. SSR, 1981, vol. 104(2), p. 365.

    Google Scholar 

  12. Damaskin, B.B. and Petrii, O.A., Vvedenie v elektrokhimicheskuyu kinetiku (The Electrochemical Kinetics: An Introduction), Moscow: Vysshaya Shkola, 1975, p. 315.

    Google Scholar 

  13. Folomeev, A.I. and Kapochyus, V.A., Issledovaniya v oblasti osazhdeniya metallov (Metal Deposition Studies), Vilnius: Inst. Khim. Khim. Tekhnol., 1985, p. 10.

    Google Scholar 

  14. Lezhava, T.I. and Meladze, K.G., Elektrokhim., 1978, vol. 14, p. 1651.

    Google Scholar 

  15. Frumkin, A.N., Petrii, O.A., and Damaskin, B.B., Abstracts of Papers, II Simpozium “Dvoinoi sloi i adsorbtsiya na tverdykh elektrodakh” (II Symp. on Double Layer and Adsorption at Solid Electrodes), Tartu: Tartus. Gos. Univ., 1970, p. 5.

    Google Scholar 

  16. Grahame, D., Trudy IV soveshchaniya po elektrokhimii (Proc. IV Meet. on Electrochemistry), Moscow: Nauka, 1959, p. 27.

    Google Scholar 

  17. Shapnik, M.S. and Kuznetsov, A.M., Elektrokhim., 1981, vol. 17, p. 419.

    Google Scholar 

  18. Lazareva, E.N. and Nikolaev, I.U., Elektrokhim., 1986, vol. 22, p. 1217.

    Google Scholar 

  19. Dobos, D., Electrochemical Data: A Handbook for Electrochemists in Industry and Universities, Amsterdam: Elsevier, 1975.

    Google Scholar 

  20. Popel', A.A., Magnitno-relaksatsionnyi metod analiza neorganicheskikh veshchestv (Magnetic Relaxation Analysis of Inorganic Substances), Moscow: Khimiya, 1978, p. 185.

  21. Sal'nikov, Yu.I., Glebov, A.N., and Devyatov, F.V., Poliyadernye kompleksy v rastvorakh (Polynuclear Complexes in Solutions), Kazan: Kazan. Gos. Univ., 1989, p. 51.

  22. Lezhava, T.I., Ananiashvili, N.Sh., Kikabidze, M.P., and Berdzenishvili, N.O., Elektrokhim., 2001, vol. 37, p. 1496.

    Google Scholar 

  23. Ananiashvili, N.Sh. and Lezhava, T.I., Koord. Khim., 1997, vol. 23, p. 135.

    Google Scholar 

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Authors and Affiliations

  1. Agladze Institute of Inorganic Chemistry and Electrochemistry of, Academy of Sciences of Georgia, GAS, Jikiya 7, Tbilisi, 380086, Georgia

    B. V. Tsanava & M. P. Kikabidze

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  1. T. I. Lezhava
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  2. B. V. Tsanava
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  3. M. P. Kikabidze
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Lezhava, T.I., Tsanava, B.V. & Kikabidze, M.P. Effect of Pyrophosphate Ions on the Mechanism of Discharge–Ionization of Copper in Acid Sulfate Solutions. Russian Journal of Electrochemistry 39, 973–980 (2003). https://doi.org/10.1023/A:1025780106057

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