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Mechanism of interaction of molecular hydrogen with adsorbed oxygen on platinum electrodes under open circuit conditions

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Abstract

Transients of open-circuit potential observed at the reaction of hydrogen molecules with oxygen preliminarily adsorbed (Oads) on the smooth polycrystalline (pc Pt) and platinized platinum (Pt/Pt) electrodes are measured under conditions of controlled stirring of solution (0.5 M H2 SO4). The dependence of the surface coverage with OadsO) on the potential in the cause of the potential decay on pc Pt are determined. It is found that for Pt/Pt, the reaction kinetics is largely determined by diffusion of H2. For pc Pt in the range of high θO, the Eley-Ridiel mechanism is realized. For medium θO, the regions where the reaction obeys the mechanisms of Eley-Ridiel, “conjugated reactions”, and diffusion control are observed to overlap (even at the most intense stirring possible). The rate of H2 reaction with Oads is substantially higher compared with analogous reactions of CO, HCOOH, and CH3OH.

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References

  1. Appleby, A.J., Energy, 1996, vol. 21, p. 521.

    Article  CAS  Google Scholar 

  2. Haile, S.M., Acta Materialia, 2003, vol. 51, p. 5981.

    Article  CAS  Google Scholar 

  3. Korovin, N.V., Elektrokhimicheskaya energetika (Electrochemical Energetics), Moscow: Energatomizdat, 1991.

    Google Scholar 

  4. Seddig, M., Khaleghi, H., and Mirzaci, M., J. Power Sources, 2006, vol. 161, p. 371.

    Article  Google Scholar 

  5. Inaba, M., Kinumoto, T., Kiriake, M., Umebayashi, R., Tasaka, A., and Ogumi, Z., Electrochim. Acta, 2006, vol. 51, p. 5746.

    Article  CAS  Google Scholar 

  6. Breiter, M.W., J. Electrochem. Soc., 1962, vol. 109, p. 425.

    Article  CAS  Google Scholar 

  7. Oxley, J.E., Johnson, G.K., and Buzalski, B.T., Electrochim. Acta, 1964, vol. 9, p. 897.

    Article  CAS  Google Scholar 

  8. Vetter, K.J. and Schultze, J.W., J. Electrochem. Soc., 1969, vol. 116, p. 824.

    Article  CAS  Google Scholar 

  9. Schuldiner, S., Rosen, M., and Flinn, D.R., Electrochim. Acta, 1973, vol. 18, p. 19.

    Article  CAS  Google Scholar 

  10. Burke, L.D. and Mayniham, K., Electrochim. Acta, 1970, vol. 15, p. 11708.

    Article  Google Scholar 

  11. Shibata, S. and Sumino, M.P., Electrochim. Acta, 1975, vol. 20, p. 739.

    Article  CAS  Google Scholar 

  12. Maksimov, Yu.M. and Podlovchenko, B.I., Elektrokhimiya, 1979, vol. 15, p. 429.

    CAS  Google Scholar 

  13. Naumov, V.I., Tyurin, Yu.M., Galkin, A.L., Volodin, G.F., and Chetyrbok, L.N., Elektrokhimiya, 1986, vol. 22, p. 1502.

    CAS  Google Scholar 

  14. Barz, F. and Lungu, M., J. Electroanal. Chem., 1982, vol. 133, p. 101.

    Article  CAS  Google Scholar 

  15. Podlovchenko, B.I., Maksimov, Yu.M., and Balandin, A.G., Elektrokhimiya, 1999, vol. 35, p. 653.

    Google Scholar 

  16. Podlovchenko, B.I., Manzhos, R.A., and Maksimov, Yu.M., Elektrokhimiya, 2002, vol. 38, p. 1430.

    Google Scholar 

  17. Manzhos, R.A., Podlovchenko, B.I., and Maksimov, Yu.M., Elektrokhimiya, 2004, vol. 40, p. 636.

    Google Scholar 

  18. Manzhos, R.A., Podlovchenko, B.I., and Maksimov, Yu.M., Elektrokhimiya, 2005, vol. 41, p. 936.

    Google Scholar 

  19. Damaskin, B.B. and Petrii, O.A., Vvedenie v elektrokhimicheskuyu kinetiku (Introduction to Electrochemical Kinetics), Moscow: Vysshaya Shkola, 1983.

    Google Scholar 

  20. Spravochnik khimika (Chemists’s Handbook), 2nd Edition, Leningrad: Khimiya, 1964, vols 1 and 3.

  21. Frumkin, A.N. in Adv. Electrochem. and Electrochem. Engng., 1963, vol. 3, p. 287.

    CAS  Google Scholar 

  22. Dolin, P.I. and Ershler, B.V., Zh. Phys. Khim., 1940, vol. 14, p. 886.

    Google Scholar 

  23. Manzhos, R.A., Podlovchenko, B.I., and Maksimov, Yu.M., Elektrokhimiya, 2006, vol. 42, p. 734.

    Google Scholar 

  24. Podlovchenko, B.I., Manzhos, R.A., and Maksimov, Yu.M., Elektrokhimiya, 2006, vol. 32, p. 1180.

    Google Scholar 

  25. Boreskov, G.K., Geterogennyi kataliz (Heterogeneous Catalysis), Moscow: Nauka, 1986.

    Google Scholar 

  26. Ralph, T.R. and Hogarth, M.P., Platinum Metals Rev., 2002, vol. 46, p. 117.

    CAS  Google Scholar 

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Correspondence to Yu. M. Maksimov.

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Original Russian Text © Yu.M. Maksimov, B.I. Podlovchenko, 2009, published in Elektrokhimiya, 2009, Vol. 45, No. 1, pp. 87–93.

This study was prepared for the special issue devoted to the 100th anniversary of B.V. Ershler.

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Maksimov, Y.M., Podlovchenko, B.I. Mechanism of interaction of molecular hydrogen with adsorbed oxygen on platinum electrodes under open circuit conditions. Russ J Electrochem 45, 81–86 (2009). https://doi.org/10.1134/S102319350901011X

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  • DOI: https://doi.org/10.1134/S102319350901011X

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