Electrochemical and Electrogravimetric Investigations of Prussian Blue on the Gold Electrode in the Presence of Tallium(I) Ions

• Autorzy: Rutkowska I. , Stroka J. , Wrona P. , Galus Z.
• Języki publikacji: EN

Abstrakty

EN

Electrode processes of Prussian Blue (PB), deposited on the gold electrode, have been investigated in potassium and thallium salts solutions, using electrogravimetric and cyclic voltammetric methods. It is shown, that both electrode processes of PB (reduction of PB to Everitt's salt and its oxidation to Berlin Yellow) undergo changes, when potassium ions are replaced by thallium(I) ones. In the presence of thallium, the formation of new redox system is observed, and Tl(I) acts as a counter-ion. The equilibrium constant of the reaction: K(I)PB + Tl(I) = Tl(I)PB + K(I) was estimated to be equal to K = (1.7_0.6)×104. At the same time almost 50% of the PB layer looses its electrochemical activity, whereas the remaining PB phase is electrochemically active. After transfer of the electrode to KNO3 solution, majority of inactivated layer recovers its previous activity. These findings are tentatively interpreted as a result of formation of two phases of PB with Tl(I): electrochemically active and inactive. Both phases are in equilibrium, and thallium ions could be replaced by potassium one. In the case of the Fe(CN) /63 4 electrode process (at more positive potentials), in the presence of Tl(I) irreversible deactivation occurs, since in KNO3 solution, no reactivation of the electrode process is observed.

Słowa kluczowe

EN

Prussian blue; thalium ions; cyclic voltammetry; quartz microbalance

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2004
• Tom: Vol. 78 / nr 5
• Strony: 711--721
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Rutkowska I.

• Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland

autor

Stroka J.

• Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland

autor

Wrona P.

• Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland

autor

Galus Z.

• Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland

Bibliografia

• 1. Itaya K., Uchida I. and Neff V.D., Acc. Chem. Res., 19, 162 (1986).
• 2. Neff V.D., J. Electrochem. Soc., 125, 886(1978).
• 3. Ellis D., Eckhoff M. and Neff V.D., J. Phys. Chem., 85, 1225 (1981).
• 4. Raj an K.P. and Neff V.D., J. Phys. Chem., 86, 4361 (1982).
• 5. Itaya K., Akahoshi H. and Toshima S., J. Electrochem. Soc., 129, 1498 (1982).
• 6. Itaya K., Ataka T., Toshima S. and Shinohara T., J. Phys. Chem., 86, 2415 (1982).
• 7. Itaya K., Ataka T. and Toshima S., J. Am. Chem. Soc., 104, 4767 (1982).
• 8. Kellawi H. and Rosseinsky D.R., J. Electroanal. Chem., 131, 373 (1982).
• 9. Itaya K., Uchida I. and Toshima S., J. Phys. Chem., 87, 105 (1983).
• 10. Mortimer R.J. and Rosseinsky D.R, J. Electroanal. Chem., 151, 133 (1983).
• 11. Itaya K., Uchida I., Toshima S. and De La Rue R. M., J. Electrochem. Soc., 131, 2086 (1984).
• 12. Mortimer R.J. and Rosseinsky D.R., J. Chem. Soc., Dalton Trans., 2059 (1984).
• 13. Itaya K., Shoji N. and Uchida I., J. Am. Chem. Soc., 106, 3423 (1984).
• 14. Crumbliss A.L., Lugg P.S. and Morosoff N., Inorg. Chem., 23, 4701 (1984).
• 15. Neff V.D., J. Electrochem. Soc., 132, 1382 (1985).
• 16. Itaya K. and Uchida I., Inorg. Chem., 25,389 (1986).
• 17. Rosseinsky D.R., Tonge J.S., Berthold J. and Cassidy J.F., J. Chem. Soc., Faraday Trans., 83, 231 (1987).
• 18. Feldman B.J. and Melroy O.M., J. Electroanal. Chem., 234,213(1987).
• 19. Feldman B.J. and Murray R.W., Inorg. Chem., 26, 1702 (1987).
• 20. Lundgren C.A. and Murray R.W., Inorg. Chem., 27, 933 (1988).
• 21. Hamnett A., Higgins S.J., Mortimer R.J. and Rosseinsky D.R., J. Electroanal. Chem., 255,315 (1988).
• 22. Ikeshoji T. and Iwasaki T., Inorg. Chem., 27, 1124 (1988).
• 23. Kulesza P.J., Inorg. Chem., 29, 2395 (1990).
• 24. Xidis A. and Neff V.D., J. Electrochem. Soc., 138, 3637 (1991).
• 25. Buttry D.A., in Electroanalytical Chemistry, A.i. Bard, Editor, Vol. 17, Dekker, NY (1992).
• 26. Hamnett A., Christensen P.A. and Higgins S.J., Analyst, 119, 735 (1994).
• 27. Dostal A., Meyer B., Scholz F., Schröder U., Bond A.M., Marken F. and Shaw S.J., J. Phys. Chem., 99, 2096(1995).
• 28. Zadronecki M., Wrona P. K. and Galus Z., J. Electrochem. Soc., 146, 620 (1999).
• 29. Dostal A., Kauschka G., Reddy S.J. and Scholz F., J. Electroanal. Chem., 406, 155 (1996).
• 30. Chen S.-M., J. Electroanal. Chem., 521,29 (2002).
• 31. Zadronecki M., Linek I. A., Stroka J., Wrona P.K. and Galus Z., J. Electrochem. Soc., 148, E348 (2001).
• 32. Greenwood N.N. and Eamshaw A., Chemistry of the Elements, 2nd ed., Pergamon Press, Oxford (2002).
• 33. Standard Potentials in Aqueous Solutions, Bard A.J., Parsons R, and Jordan J., Eds., IUPAC, M. Dekker NY (1985).