Formation of Adatoms and Crystalline Nuclei at Electrocrystallization of Metals under Galvanostatic Conditions

Yu. D. Gamburg Yu. D. Gamburg
Российский электрохимический журнал
Abstract / Full Text

For correctly analyzing the nucleation processes during metal electrodeposition under galvanostatic conditions, we must take into account that the deposition and dissolution processes are of nonequilibrium character, which is associated with deviation of the electrode potential from equilibrium. Ignorance of this factor substantially affects the results of calculations. The experimental dependences potential vs. time obtained under galvanostatic conditions make it possible to determine the equilibrium concentration of adatoms, the electrode-reaction transfer coefficient, and, in certain cases, the exchange current density if the latter is not too high.

Author information
  • Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, 119071, Russia

    Yu. D. Gamburg

  1. Samartsev, A.G. and Evstrop’ev, K.S., Overpotential phenomena at electroplating of metals, Zh. Fiz. Khim., 1934, vol. 5, no. 7, p. 854.
  2. Gutsov, I., Kinetics of phase formation under galvanostatic conditions, Proc. Institute of Physical Chemistry, Bulgarian Academy of Sciences, 1964, vol. 4, p. 69.
  3. Trofimenko, V.V., Kovalenko, V.S., Zhitnik, V.P., and Loshkarev, Yu.M., Kinetics of nonstationary nucleation during electrolysis in galvanostatic mode, Elektrokhimiya, 1983, vol. 19, p. 887.
  4. Milchev, A. and Montenegro, M.I., A galvanostatic study of electrochemical Nucleation, J. Electroanal. Chem., 1992, vol. 333, p. 93.
  5. Isaev, V.A., Elektrokhimicheskoe fazoobrazovanie (Electrochemical Phase Formationв), Yekaterinburg: UrO RAN, 2007.
  6. Isaev, V.A. and Grishenkova, O.V., Galvanostatic phase formation, J. Solid State Electrochem., 2014, vol. 18, p. 2383.
  7. Gamburg, Yu.D., Kinetic model of electrochemical nucleation, Russ. J. Electrochem., 2009, vol. 45, p. 1397.